ramda - npm Package Compare versions

Comparing version 0.22.1 to 0.23.0

BOOKMARKLET.md

@@ -11,4 +11,4 @@ # Ramda Bookmarklet
     ```javascript
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     ```

dist/ramda.min.js

@@ -1,2 +0,2 @@
-//  Ramda v0.22.1
+//  Ramda v0.23.0
 //  https://github.com/ramda/ramda
@@ -6,3 +6,3 @@ //  (c) 2013-2016 Scott Sauyet, Michael Hurley, and David Chambers
 
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package.json

@@ -27,3 +27,3 @@ {
   "description": "A practical functional library for JavaScript programmers.",
-  "version": "0.22.1",
+  "version": "0.23.0",
   "homepage": "http://ramdajs.com/",
@@ -35,3 +35,3 @@ "license": "MIT",
   },
-  "main": "dist/ramda.js",
+  "main": "index.js",
   "scripts": {
@@ -46,3 +46,2 @@ "bench": "scripts/benchRunner",
     "lint": "eslint scripts/bookmarklet scripts/build src/*.js src/internal/*.js test/*.js test/**/*.js lib/sauce/*.js lib/bench/*.js",
-    "pretest": "npm install && npm run lint && npm run clean && npm run build",
     "test": "mocha --reporter spec",
@@ -68,2 +67,3 @@ "posttest": "git checkout -- dist",
     "js-yaml": "^3.2.5",
+    "jsverify": "^0.7.3",
     "mocha": "2.x.x",
@@ -77,4 +77,4 @@ "q": "^1.1.1",
     "uglify-js": "2.4.x",
-    "xyz": "0.5.x"
+    "xyz": "1.0.x"
   }
 }

README.md

 Ramda
 =============
 
-A practical functional library for Javascript programmers.
+A practical functional library for JavaScript programmers.
 
@@ -52,10 +52,10 @@ [![Build Status](https://travis-ci.org/ramda/ramda.svg?branch=master)](https://travis-ci.org/ramda/ramda)
 ----------
-Using Ramda should feel much like just using Javascript.
-It is practical, functional Javascript. We're not introducing
+Using Ramda should feel much like just using JavaScript.
+It is practical, functional JavaScript. We're not introducing
 lambda expressions in strings, we're not borrowing consed 
 lists, we're not porting over all of the Clojure functions.
 
-Our basic data structures are plain Javascript objects, and our
-usual collections are Javascript arrays. We also keep other
-native features of Javascript, such as functions as objects
+Our basic data structures are plain JavaScript objects, and our
+usual collections are JavaScript arrays. We also keep other
+native features of JavaScript, such as functions as objects
 with properties.
@@ -104,3 +104,3 @@
 ```html
-<script src="//cdnjs.cloudflare.com/ajax/libs/ramda/0.22.1/ramda.min.js"></script>
+<script src="//cdnjs.cloudflare.com/ajax/libs/ramda/0.23.0/ramda.min.js"></script>
 ```
@@ -111,4 +111,4 @@
 ```html
-<script src="//cdn.jsdelivr.net/ramda/0.22.1/ramda.min.js"></script>
-<script src="//cdn.jsdelivr.net/ramda/0.22/ramda.min.js"></script>
+<script src="//cdn.jsdelivr.net/ramda/0.23.0/ramda.min.js"></script>
+<script src="//cdn.jsdelivr.net/ramda/0.23/ramda.min.js"></script>
 <script src="//cdn.jsdelivr.net/ramda/latest/ramda.min.js"></script>
@@ -115,0 +115,0 @@ ```

src/addIndex.js

 var _concat = require('./internal/_concat');
 var _curry1 = require('./internal/_curry1');
-var _slice = require('./internal/_slice');
 var curryN = require('./curryN');
@@ -36,3 +35,3 @@
     var list = arguments[arguments.length - 1];
-    var args = _slice(arguments);
+    var args = Array.prototype.slice.call(arguments, 0);
     args[0] = function() {
@@ -39,0 +38,0 @@ var result = origFn.apply(this, _concat(arguments, [idx, list]));

src/adjust.js

@@ -25,4 +25,6 @@ var _concat = require('./internal/_concat');
  *
- *      R.adjust(R.add(10), 1, [0, 1, 2]);     //=> [0, 11, 2]
- *      R.adjust(R.add(10))(1)([0, 1, 2]);     //=> [0, 11, 2]
+ *      R.adjust(R.add(10), 1, [1, 2, 3]);     //=> [1, 12, 3]
+ *      R.adjust(R.add(10))(1)([1, 2, 3]);     //=> [1, 12, 3]
+ * @symb R.adjust(f, -1, [a, b]) = [a, f(b)]
+ * @symb R.adjust(f, 0, [a, b]) = [f(a), b]
  */
@@ -29,0 +31,0 @@ module.exports = _curry3(function adjust(fn, idx, list) {

src/all.js

@@ -26,8 +26,7 @@ var _curry2 = require('./internal/_curry2');
  *
- *      var lessThan2 = R.flip(R.lt)(2);
- *      var lessThan3 = R.flip(R.lt)(3);
- *      R.all(lessThan2)([1, 2]); //=> false
- *      R.all(lessThan3)([1, 2]); //=> true
+ *      var equals3 = R.equals(3);
+ *      R.all(equals3)([3, 3, 3, 3]); //=> true
+ *      R.all(equals3)([3, 3, 1, 3]); //=> false
  */
-module.exports = _curry2(_dispatchable('all', _xall, function all(fn, list) {
+module.exports = _curry2(_dispatchable(['all'], _xall, function all(fn, list) {
   var idx = 0;
@@ -34,0 +33,0 @@ while (idx < list.length) {

src/allPass.js

@@ -21,4 +21,4 @@ var _curry1 = require('./internal/_curry1');
  * @sig [(*... -> Boolean)] -> (*... -> Boolean)
- * @param {Array} preds
- * @return {Function}
+ * @param {Array} predicates An array of predicates to check
+ * @return {Function} The combined predicate
  * @see R.anyPass
@@ -25,0 +25,0 @@ * @example

src/and.js

@@ -11,6 +11,6 @@ var _curry2 = require('./internal/_curry2');
  * @category Logic
- * @sig * -> * -> *
- * @param {Boolean} a A boolean value
- * @param {Boolean} b A boolean value
- * @return {Boolean} `true` if both arguments are `true`, `false` otherwise
+ * @sig a -> b -> a | b
+ * @param {Any} a
+ * @param {Any} b
+ * @return {Any} the first argument if it is falsy, otherwise the second argument.
  * @see R.both
@@ -17,0 +17,0 @@ * @example

src/any.js

@@ -31,3 +31,3 @@ var _curry2 = require('./internal/_curry2');
  */
-module.exports = _curry2(_dispatchable('any', _xany, function any(fn, list) {
+module.exports = _curry2(_dispatchable(['any'], _xany, function any(fn, list) {
   var idx = 0;
@@ -34,0 +34,0 @@ while (idx < list.length) {

src/anyPass.js

@@ -21,12 +21,14 @@ var _curry1 = require('./internal/_curry1');
  * @sig [(*... -> Boolean)] -> (*... -> Boolean)
- * @param {Array} preds
- * @return {Function}
+ * @param {Array} predicates An array of predicates to check
+ * @return {Function} The combined predicate
  * @see R.allPass
  * @example
  *
- *      var gte = R.anyPass([R.gt, R.equals]);
+ *      var isClub = R.propEq('suit', '♣');
+ *      var isSpade = R.propEq('suit', '♠');
+ *      var isBlackCard = R.anyPass([isClub, isSpade]);
  *
- *      gte(3, 2); //=> true
- *      gte(2, 2); //=> true
- *      gte(2, 3); //=> false
+ *      isBlackCard({rank: '10', suit: '♣'}); //=> true
+ *      isBlackCard({rank: 'Q', suit: '♠'}); //=> true
+ *      isBlackCard({rank: 'Q', suit: '♦'}); //=> false
  */
@@ -33,0 +35,0 @@ module.exports = _curry1(function anyPass(preds) {

src/ap.js

@@ -25,2 +25,4 @@ var _concat = require('./internal/_concat');
  *      R.ap([R.multiply(2), R.add(3)], [1,2,3]); //=> [2, 4, 6, 4, 5, 6]
+ *      R.ap([R.concat('tasty '), R.toUpper], ['pizza', 'salad']); //=> ["tasty pizza", "tasty salad", "PIZZA", "SALAD"]
+ * @symb R.ap([f, g], [a, b]) = [f(a), f(b), g(a), g(b)]
  */
@@ -27,0 +29,0 @@ module.exports = _curry2(function ap(applicative, fn) {

src/aperture.js

@@ -11,4 +11,2 @@ var _aperture = require('./internal/_aperture');
  *
- * Dispatches to the `aperture` method of the second argument, if present.
- *
  * Acts as a transducer if a transformer is given in list position.
@@ -22,4 +20,4 @@ *
  * @param {Number} n The size of the tuples to create
- * @param {Array} list The list to split into `n`-tuples
- * @return {Array} The new list.
+ * @param {Array} list The list to split into `n`-length tuples
+ * @return {Array} The resulting list of `n`-length tuples
  * @see R.transduce
@@ -32,2 +30,2 @@ * @example
  */
-module.exports = _curry2(_dispatchable('aperture', _xaperture, _aperture));
+module.exports = _curry2(_dispatchable([], _xaperture, _aperture));

src/append.js

@@ -15,5 +15,5 @@ var _concat = require('./internal/_concat');
  * @param {*} el The element to add to the end of the new list.
- * @param {Array} list The list whose contents will be added to the beginning of the output
+ * @param {Array} list The list of elements to add a new item to.
  *        list.
- * @return {Array} A new list containing the contents of the old list followed by `el`.
+ * @return {Array} A new list containing the elements of the old list followed by `el`.
  * @see R.prepend
@@ -20,0 +20,0 @@ * @example

src/apply.js

@@ -14,5 +14,5 @@ var _curry2 = require('./internal/_curry2');
  * @sig (*... -> a) -> [*] -> a
- * @param {Function} fn
- * @param {Array} args
- * @return {*}
+ * @param {Function} fn The function which will be called with `args`
+ * @param {Array} args The arguments to call `fn` with
+ * @return {*} result The result, equivalent to `fn(...args)`
  * @see R.call, R.unapply
@@ -23,2 +23,3 @@ * @example
  *      R.apply(Math.max, nums); //=> 42
+ * @symb R.apply(f, [a, b, c]) = f(a, b, c)
  */
@@ -25,0 +26,0 @@ module.exports = _curry2(function apply(fn, args) {

src/applySpec.js

@@ -34,5 +34,6 @@ var _curry1 = require('./internal/_curry1');
  *      getMetrics(2, 4); // => { sum: 6, nested: { mul: 8 } }
+ * @symb R.applySpec({ x: f, y: { z: g } })(a, b) = { x: f(a, b), y: { z: g(a, b) } }
  */
 module.exports = _curry1(function applySpec(spec) {
-  spec = map(function(v) { return typeof v == 'function' ? v : applySpec(v) },
+  spec = map(function(v) { return typeof v == 'function' ? v : applySpec(v); },
              spec);
@@ -39,0 +40,0 @@ return curryN(reduce(max, 0, pluck('length', values(spec))),

src/assoc.js

@@ -15,6 +15,6 @@ var _curry3 = require('./internal/_curry3');
  * @sig String -> a -> {k: v} -> {k: v}
- * @param {String} prop the property name to set
- * @param {*} val the new value
- * @param {Object} obj the object to clone
- * @return {Object} a new object similar to the original except for the specified property.
+ * @param {String} prop The property name to set
+ * @param {*} val The new value
+ * @param {Object} obj The object to clone
+ * @return {Object} A new object equivalent to the original except for the changed property.
  * @see R.dissoc
@@ -21,0 +21,0 @@ * @example

src/assocPath.js

 var _curry3 = require('./internal/_curry3');
-var _slice = require('./internal/_slice');
+var _has = require('./internal/_has');
+var _isArray = require('./internal/_isArray');
+var _isInteger = require('./internal/_isInteger');
 var assoc = require('./assoc');
@@ -16,7 +18,8 @@
  * @category Object
- * @sig [String] -> a -> {k: v} -> {k: v}
+ * @typedefn Idx = String | Int
+ * @sig [Idx] -> a -> {a} -> {a}
  * @param {Array} path the path to set
- * @param {*} val the new value
- * @param {Object} obj the object to clone
- * @return {Object} a new object similar to the original except along the specified path.
+ * @param {*} val The new value
+ * @param {Object} obj The object to clone
+ * @return {Object} A new object equivalent to the original except along the specified path.
  * @see R.dissocPath
@@ -26,12 +29,22 @@ * @example
  *      R.assocPath(['a', 'b', 'c'], 42, {a: {b: {c: 0}}}); //=> {a: {b: {c: 42}}}
+ *
+ *      // Any missing or non-object keys in path will be overridden
+ *      R.assocPath(['a', 'b', 'c'], 42, {a: 5}); //=> {a: {b: {c: 42}}}
  */
 module.exports = _curry3(function assocPath(path, val, obj) {
-  switch (path.length) {
-    case 0:
-      return val;
-    case 1:
-      return assoc(path[0], val, obj);
-    default:
-      return assoc(path[0], assocPath(_slice(path, 1), val, Object(obj[path[0]])), obj);
+  if (path.length === 0) {
+    return val;
   }
+  var idx = path[0];
+  if (path.length > 1) {
+    var nextObj = _has(idx, obj) ? obj[idx] : _isInteger(path[1]) ? [] : {};
+    val = assocPath(Array.prototype.slice.call(path, 1), val, nextObj);
+  }
+  if (_isInteger(idx) && _isArray(obj)) {
+    var arr = [].concat(obj);
+    arr[idx] = val;
+    return arr;
+  } else {
+    return assoc(idx, val, obj);
+  }
 });

src/binary.js

@@ -30,2 +30,3 @@ var _curry1 = require('./internal/_curry1');
  *      takesTwoArgs(1, 2, 3); //=> [1, 2, undefined]
+ * @symb R.binary(f)(a, b, c) = f(a, b)
  */
@@ -32,0 +33,0 @@ module.exports = _curry1(function binary(fn) {

src/bind.js

@@ -25,2 +25,3 @@ var _arity = require('./internal/_arity');
  *      // logs {a: 2}
+ * @symb R.bind(f, o)(a, b) = f.call(o, a, b)
  */
@@ -27,0 +28,0 @@ module.exports = _curry2(function bind(fn, thisObj) {

src/both.js

@@ -8,4 +8,5 @@ var _curry2 = require('./internal/_curry2');
 /**
- * A function wrapping calls to the two functions in an `&&` operation,
- * returning the result of the first function if it is false-y and the result
+ * A function which calls the two provided functions and returns the `&&`
+ * of the results.
+ * It returns the result of the first function if it is false-y and the result
  * of the second function otherwise. Note that this is short-circuited,
@@ -23,4 +24,4 @@ * meaning that the second function will not be invoked if the first returns a
  * @sig (*... -> Boolean) -> (*... -> Boolean) -> (*... -> Boolean)
- * @param {Function} f a predicate
- * @param {Function} g another predicate
+ * @param {Function} f A predicate
+ * @param {Function} g Another predicate
  * @return {Function} a function that applies its arguments to `f` and `g` and `&&`s their outputs together.
@@ -30,7 +31,7 @@ * @see R.and
  *
- *      var gt10 = x => x > 10;
- *      var even = x => x % 2 === 0;
- *      var f = R.both(gt10, even);
- *      f(100); //=> true
- *      f(101); //=> false
+ *      var gt10 = R.gt(R.__, 10)
+ *      var lt20 = R.lt(R.__, 20)
+ *      var f = R.both(gt10, lt20);
+ *      f(15); //=> true
+ *      f(30); //=> false
  */
@@ -37,0 +38,0 @@ module.exports = _curry2(function both(f, g) {

src/call.js

@@ -1,2 +0,1 @@
-var _slice = require('./internal/_slice');
 var curry = require('./curry');
@@ -22,2 +21,4 @@
  *
+ *      R.call(R.add, 1, 2); //=> 3
+ *
  *      var indentN = R.pipe(R.times(R.always(' ')),
@@ -33,5 +34,6 @@ *                           R.join(''),
  *      format({indent: 2, value: 'foo\nbar\nbaz\n'}); //=> '  foo\n  bar\n  baz\n'
+ * @symb R.call(f, a, b) = f(a, b)
  */
 module.exports = curry(function call(fn) {
-  return fn.apply(this, _slice(arguments, 1));
+  return fn.apply(this, Array.prototype.slice.call(arguments, 1));
 });

src/chain.js

@@ -20,5 +20,5 @@ var _curry2 = require('./internal/_curry2');
  * @sig Chain m => (a -> m b) -> m a -> m b
- * @param {Function} fn
- * @param {Array} list
- * @return {Array}
+ * @param {Function} fn The function to map with
+ * @param {Array} list The list to map over
+ * @return {Array} The result of flat-mapping `list` with `fn`
  * @example
@@ -28,10 +28,10 @@ *
  *      R.chain(duplicate, [1, 2, 3]); //=> [1, 1, 2, 2, 3, 3]
+ *
+ *      R.chain(R.append, R.head)([1, 2, 3]); //=> [1, 2, 3, 1]
  */
-module.exports = _curry2(_dispatchable('chain', _xchain, function chain(fn, monad) {
+module.exports = _curry2(_dispatchable(['chain'], _xchain, function chain(fn, monad) {
   if (typeof monad === 'function') {
-    return function() {
-      return monad.call(this, fn.apply(this, arguments)).apply(this, arguments);
-    };
+    return function(x) { return fn(monad(x))(x); };
   }
   return _makeFlat(false)(map(fn, monad));
 }));

src/clamp.js

@@ -13,10 +13,10 @@ var _curry3 = require('./internal/_curry3');
  * @sig Ord a => a -> a -> a -> a
- * @param {Number} minimum number
- * @param {Number} maximum number
- * @param {Number} value to be clamped
- * @return {Number} Returns the clamped value
+ * @param {Number} minimum The lower limit of the clamp (inclusive)
+ * @param {Number} maximum The upper limit of the clamp (inclusive)
+ * @param {Number} value Value to be clamped
+ * @return {Number} Returns `minimum` when `val < minimum`, `maximum` when `val > maximum`, returns `val` otherwise
  * @example
  *
- *      R.clamp(1, 10, -1) // => 1
- *      R.clamp(1, 10, 11) // => 10
+ *      R.clamp(1, 10, -5) // => 1
+ *      R.clamp(1, 10, 15) // => 10
  *      R.clamp(1, 10, 4)  // => 4
@@ -23,0 +23,0 @@ */

src/clone.js

@@ -7,4 +7,4 @@ var _clone = require('./internal/_clone');
  * Creates a deep copy of the value which may contain (nested) `Array`s and
- * `Object`s, `Number`s, `String`s, `Boolean`s and `Date`s. `Function`s are not
- * copied, but assigned by their reference.
+ * `Object`s, `Number`s, `String`s, `Boolean`s and `Date`s. `Function`s are
+ * assigned by reference rather than copied
  *
@@ -19,3 +19,3 @@ * Dispatches to a `clone` method if present.
  * @param {*} value The object or array to clone
- * @return {*} A new object or array.
+ * @return {*} A deeply cloned copy of `val`
  * @example
@@ -25,2 +25,3 @@ *
  *      var objectsClone = R.clone(objects);
+ *      objects === objectsClone; //=> false
  *      objects[0] === objectsClone[0]; //=> false
@@ -27,0 +28,0 @@ */

src/comparator.js

@@ -13,11 +13,12 @@ var _curry1 = require('./internal/_curry1');
  * @sig (a, b -> Boolean) -> (a, b -> Number)
- * @param {Function} pred A predicate function of arity two.
- * @return {Function} A Function :: a -> b -> Int that returns `-1` if a < b, `1` if b < a, otherwise `0`.
+ * @param {Function} pred A predicate function of arity two which will return `true` if the first argument
+ * is less than the second, `false` otherwise
+ * @return {Function} A Function :: a -> b -> Int that returns `-1` if a < b, `1` if b < a, otherwise `0`
  * @example
  *
- *      var cmp = R.comparator((a, b) => a.age < b.age);
+ *      var byAge = R.comparator((a, b) => a.age < b.age);
  *      var people = [
  *        // ...
  *      ];
- *      R.sort(cmp, people);
+ *      var peopleByIncreasingAge = R.sort(byAge, people);
  */
@@ -24,0 +25,0 @@ module.exports = _curry1(function comparator(pred) {

src/complement.js

@@ -6,12 +6,7 @@ var lift = require('./lift');
 /**
- * Takes a function `f` and returns a function `g` such that:
+ * Takes a function `f` and returns a function `g` such that if called with the same arguments
+ * when `f` returns a "truthy" value, `g` returns `false` and when `f` returns a "falsy" value `g` returns `true`.
  *
- *   - applying `g` to zero or more arguments will give __true__ if applying
- *     the same arguments to `f` gives a logical __false__ value; and
+ * `R.complement` may be applied to any functor
  *
- *   - applying `g` to zero or more arguments will give __false__ if applying
- *     the same arguments to `f` gives a logical __true__ value.
- *
- * `R.complement` will work on all other functors as well.
- *
  * @func
@@ -27,7 +22,8 @@ * @memberOf R
  *
- *      var isEven = n => n % 2 === 0;
- *      var isOdd = R.complement(isEven);
- *      isOdd(21); //=> true
- *      isOdd(42); //=> false
+ *      var isNotNil = R.complement(R.isNil);
+ *      isNil(null); //=> true
+ *      isNotNil(null); //=> false
+ *      isNil(7); //=> false
+ *      isNotNil(7); //=> true
  */
 module.exports = lift(not);

src/compose.js

@@ -16,3 +16,3 @@ var pipe = require('./pipe');
  * @sig ((y -> z), (x -> y), ..., (o -> p), ((a, b, ..., n) -> o)) -> ((a, b, ..., n) -> z)
- * @param {...Function} functions
+ * @param {...Function} ...functions The functions to compose
  * @return {Function}
@@ -22,5 +22,9 @@ * @see R.pipe
  *
- *      var f = R.compose(R.inc, R.negate, Math.pow);
+ *      var classyGreeting = (firstName, lastName) => "The name's " + lastName + ", " + firstName + " " + lastName
+ *      var yellGreeting = R.compose(R.toUpper, classyGreeting);
+ *      yellGreeting('James', 'Bond'); //=> "THE NAME'S BOND, JAMES BOND"
  *
- *      f(3, 4); // -(3^4) + 1
+ *      R.compose(Math.abs, R.add(1), R.multiply(2))(-4) //=> 7
+ *
+ * @symb R.compose(f, g, h)(a, b) = f(g(h(a, b)))
  */
@@ -27,0 +31,0 @@ module.exports = function compose() {

src/composeK.js

 var chain = require('./chain');
 var compose = require('./compose');
-var identity = require('./identity');
 var map = require('./map');
-var prepend = require('./prepend');
 
@@ -18,4 +16,4 @@
  * @category Function
- * @sig Chain m => ((y -> m z), (x -> m y), ..., (a -> m b)) -> (m a -> m z)
- * @param {...Function}
+ * @sig Chain m => ((y -> m z), (x -> m y), ..., (a -> m b)) -> (a -> m z)
+ * @param {...Function} ...functions The functions to compose
  * @return {Function}
@@ -25,21 +23,23 @@ * @see R.pipeK
  *
- *      //  parseJson :: String -> Maybe *
- *      //  get :: String -> Object -> Maybe *
+ *       //  get :: String -> Object -> Maybe *
+ *       var get = R.curry((propName, obj) => Maybe(obj[propName]))
  *
- *      //  getStateCode :: Maybe String -> Maybe String
- *      var getStateCode = R.composeK(
- *        R.compose(Maybe.of, R.toUpper),
- *        get('state'),
- *        get('address'),
- *        get('user'),
- *        parseJson
- *      );
- *
- *      getStateCode(Maybe.of('{"user":{"address":{"state":"ny"}}}'));
- *      //=> Just('NY')
- *      getStateCode(Maybe.of('[Invalid JSON]'));
- *      //=> Nothing()
+ *       //  getStateCode :: Maybe String -> Maybe String
+ *       var getStateCode = R.composeK(
+ *         R.compose(Maybe.of, R.toUpper),
+ *         get('state'),
+ *         get('address'),
+ *         get('user'),
+ *       );
+ *       getStateCode({"user":{"address":{"state":"ny"}}}); //=> Maybe.Just("NY")
+ *       getStateCode({}); //=> Maybe.Nothing()
+ * @symb R.composeK(f, g, h)(a) = R.chain(f, R.chain(g, h(a)))
  */
 module.exports = function composeK() {
-  return compose.apply(this, prepend(identity, map(chain, arguments)));
+  if (arguments.length === 0) {
+    throw new Error('composeK requires at least one argument');
+  }
+  var init = Array.prototype.slice.call(arguments);
+  var last = init.pop();
+  return compose(compose.apply(this, map(chain, init)), last);
 };

src/composeP.js

@@ -15,3 +15,3 @@ var pipeP = require('./pipeP');
  * @sig ((y -> Promise z), (x -> Promise y), ..., (a -> Promise b)) -> (a -> Promise z)
- * @param {...Function} functions
+ * @param {...Function} functions The functions to compose
  * @return {Function}
@@ -21,4 +21,20 @@ * @see R.pipeP
  *
- *      //  followersForUser :: String -> Promise [User]
- *      var followersForUser = R.composeP(db.getFollowers, db.getUserById);
+ *      var db = {
+ *        users: {
+ *          JOE: {
+ *            name: 'Joe',
+ *            followers: ['STEVE', 'SUZY']
+ *          }
+ *        }
+ *      }
+ *
+ *      // We'll pretend to do a db lookup which returns a promise
+ *      var lookupUser = (userId) => Promise.resolve(db.users[userId])
+ *      var lookupFollowers = (user) => Promise.resolve(user.followers)
+ *      lookupUser('JOE').then(lookupFollowers)
+ *
+ *      //  followersForUser :: String -> Promise [UserId]
+ *      var followersForUser = R.composeP(lookupFollowers, lookupUser);
+ *      followersForUser('JOE').then(followers => console.log('Followers:', followers))
+ *      // Followers: ["STEVE","SUZY"]
  */
@@ -25,0 +41,0 @@ module.exports = function composeP() {

src/concat.js

@@ -22,11 +22,12 @@ var _curry2 = require('./internal/_curry2');
  * @sig String -> String -> String
- * @param {Array|String} a
- * @param {Array|String} b
- * @return {Array|String}
+ * @param {Array|String} firstList The first list
+ * @param {Array|String} secondList The second list
+ * @return {Array|String} A list consisting of the elements of `firstList` followed by the elements of
+ * `secondList`.
  *
  * @example
  *
+ *      R.concat('ABC', 'DEF'); // 'ABCDEF'
+ *      R.concat([4, 5, 6], [1, 2, 3]); //=> [4, 5, 6, 1, 2, 3]
  *      R.concat([], []); //=> []
- *      R.concat([4, 5, 6], [1, 2, 3]); //=> [4, 5, 6, 1, 2, 3]
- *      R.concat('ABC', 'DEF'); // 'ABCDEF'
  */
@@ -33,0 +34,0 @@ module.exports = _curry2(function concat(a, b) {

src/cond.js

@@ -9,4 +9,4 @@ var _arity = require('./internal/_arity');
 /**
- * Returns a function, `fn`, which encapsulates if/else-if/else logic.
- * `R.cond` takes a list of [predicate, transform] pairs. All of the arguments
+ * Returns a function, `fn`, which encapsulates `if/else, if/else, ...` logic.
+ * `R.cond` takes a list of [predicate, transformer] pairs. All of the arguments
  * to `fn` are applied to each of the predicates in turn until one returns a
@@ -22,3 +22,3 @@ * "truthy" value, at which point `fn` returns the result of applying its
  * @sig [[(*... -> Boolean),(*... -> *)]] -> (*... -> *)
- * @param {Array} pairs
+ * @param {Array} pairs A list of [predicate, transformer]
  * @return {Function}
@@ -25,0 +25,0 @@ * @example

src/construct.js

@@ -14,3 +14,3 @@ var _curry1 = require('./internal/_curry1');
  * @sig (* -> {*}) -> (* -> {*})
- * @param {Function} Fn The constructor function to wrap.
+ * @param {Function} fn The constructor function to wrap.
  * @return {Function} A wrapped, curried constructor function.
@@ -20,12 +20,18 @@ * @example
  *      // Constructor function
- *      var Widget = config => {
- *        // ...
+ *      function Animal(kind) {
+ *        this.kind = kind;
  *      };
- *      Widget.prototype = {
- *        // ...
- *      };
- *      var allConfigs = [
- *        // ...
- *      ];
- *      R.map(R.construct(Widget), allConfigs); // a list of Widgets
+ *      Animal.prototype.sighting = function() {
+ *        return "It's a " + this.kind + "!";
+ *      }
+ *
+ *      var AnimalConstructor = R.construct(Animal)
+ *
+ *      // Notice we no longer need the 'new' keyword:
+ *      AnimalConstructor('Pig'); //=> {"kind": "Pig", "sighting": function (){...}};
+ *
+ *      var animalTypes = ["Lion", "Tiger", "Bear"];
+ *      var animalSighting = R.invoker(0, 'sighting');
+ *      var sightNewAnimal = R.compose(animalSighting, AnimalConstructor);
+ *      R.map(sightNewAnimal, animalTypes); //=> ["It's a Lion!", "It's a Tiger!", "It's a Bear!"]
  */
@@ -32,0 +38,0 @@ module.exports = _curry1(function construct(Fn) {

src/constructN.js

@@ -21,14 +21,21 @@ var _curry2 = require('./internal/_curry2');
  *
- *      // Variadic constructor function
- *      var Widget = () => {
- *        this.children = Array.prototype.slice.call(arguments);
- *        // ...
+ *      // Variadic Constructor function
+ *      function Salad() {
+ *        this.ingredients = arguments;
  *      };
- *      Widget.prototype = {
- *        // ...
- *      };
- *      var allConfigs = [
- *        // ...
- *      ];
- *      R.map(R.constructN(1, Widget), allConfigs); // a list of Widgets
+ *      Salad.prototype.recipe = function() {
+ *        var instructions = R.map((ingredient) => (
+ *          'Add a whollop of ' + ingredient, this.ingredients)
+ *        )
+ *        return R.join('\n', instructions)
+ *      }
+ *
+ *      var ThreeLayerSalad = R.constructN(3, Salad)
+ *
+ *      // Notice we no longer need the 'new' keyword, and the constructor is curried for 3 arguments.
+ *      var salad = ThreeLayerSalad('Mayonnaise')('Potato Chips')('Ketchup')
+ *      console.log(salad.recipe());
+ *      // Add a whollop of Mayonnaise
+ *      // Add a whollop of Potato Chips
+ *      // Add a whollop of Potato Ketchup
  */
@@ -35,0 +42,0 @@ module.exports = _curry2(function constructN(n, Fn) {

src/contains.js

@@ -16,3 +16,3 @@ var _contains = require('./internal/_contains');
  * @param {Array} list The array to consider.
- * @return {Boolean} `true` if the item is in the list, `false` otherwise.
+ * @return {Boolean} `true` if an equivalent item is in the list, `false` otherwise.
  * @see R.any
@@ -23,4 +23,5 @@ * @example
  *      R.contains(4, [1, 2, 3]); //=> false
+ *      R.contains({ name: 'Fred' }, [{ name: 'Fred' }]); //=> true
  *      R.contains([42], [[42]]); //=> true
  */
 module.exports = _curry2(_contains);

src/converge.js

@@ -25,13 +25,12 @@ var _curry2 = require('./internal/_curry2');
  * @return {Function} A new function.
+ * @see R.useWith
  * @example
  *
- *      var add = (a, b) => a + b;
- *      var multiply = (a, b) => a * b;
- *      var subtract = (a, b) => a - b;
+ *      var average = R.converge(R.divide, [R.sum, R.length])
+ *      average([1, 2, 3, 4, 5, 6, 7]) //=> 4
  *
- *      //≅ multiply( add(1, 2), subtract(1, 2) );
- *      R.converge(multiply, [add, subtract])(1, 2); //=> -3
+ *      var strangeConcat = R.converge(R.concat, [R.toUpper, R.toLower])
+ *      strangeConcat("Yodel") //=> "YODELyodel"
  *
- *      var add3 = (a, b, c) => a + b + c;
- *      R.converge(add3, [multiply, add, subtract])(1, 2); //=> 4
+ * @symb R.converge(f, [g, h])(a, b) = f(g(a, b), h(a, b))
  */
@@ -38,0 +37,0 @@ module.exports = _curry2(function converge(after, fns) {

src/countBy.js

@@ -23,6 +23,7 @@ var reduceBy = require('./reduceBy');
  *      var numbers = [1.0, 1.1, 1.2, 2.0, 3.0, 2.2];
- *      var letters = R.split('', 'abcABCaaaBBc');
  *      R.countBy(Math.floor)(numbers);    //=> {'1': 3, '2': 2, '3': 1}
- *      R.countBy(R.toLower)(letters);   //=> {'a': 5, 'b': 4, 'c': 3}
+ *
+ *      var letters = ['a', 'b', 'A', 'a', 'B', 'c'];
+ *      R.countBy(R.toLower)(letters);   //=> {'a': 3, 'b': 2, 'c': 1}
  */
 module.exports = reduceBy(function(acc, elem) { return acc + 1; }, 0);

src/dec.js

@@ -13,3 +13,3 @@ var add = require('./add');
  * @param {Number} n
- * @return {Number}
+ * @return {Number} n - 1
  * @see R.inc
@@ -16,0 +16,0 @@ * @example

src/defaultTo.js

@@ -13,5 +13,5 @@ var _curry2 = require('./internal/_curry2');
  * @sig a -> b -> a | b
- * @param {a} val The default value.
- * @param {b} val The value to return if it is not null or undefined
- * @return {*} The the second value or the default value
+ * @param {a} default The default value.
+ * @param {b} val `val` will be returned instead of `default` unless `val` is `null`, `undefined` or `NaN`.
+ * @return {*} The second value if it is not `null`, `undefined` or `NaN`, otherwise the default value
  * @example
@@ -24,2 +24,3 @@ *
  *      defaultTo42('Ramda');  //=> 'Ramda'
+ *      // parseInt('string') results in NaN
  *      defaultTo42(parseInt('string')); //=> 42
@@ -26,0 +27,0 @@ */

src/difference.js

@@ -7,3 +7,4 @@ var _contains = require('./internal/_contains');
  * Finds the set (i.e. no duplicates) of all elements in the first list not
- * contained in the second list.
+ * contained in the second list. Objects and Arrays are compared are compared
+ * in terms of value equality, not reference equality.
  *
@@ -23,2 +24,3 @@ * @func
  *      R.difference([7,6,5,4,3], [1,2,3,4]); //=> [7,6,5]
+ *      R.difference([{a: 1}, {b: 2}], [{a: 1}, {c: 3}]) //=> [{b: 2}]
  */
@@ -25,0 +27,0 @@ module.exports = _curry2(function difference(first, second) {

src/differenceWith.js

@@ -14,3 +14,3 @@ var _containsWith = require('./internal/_containsWith');
  * @category Relation
- * @sig (a -> a -> Boolean) -> [*] -> [*] -> [*]
+ * @sig ((a, a) -> Boolean) -> [a] -> [a] -> [a]
  * @param {Function} pred A predicate used to test whether two items are equal.
@@ -17,0 +17,0 @@ * @param {Array} list1 The first list.

src/dissoc.js

@@ -12,5 +12,5 @@ var _curry2 = require('./internal/_curry2');
  * @sig String -> {k: v} -> {k: v}
- * @param {String} prop the name of the property to dissociate
- * @param {Object} obj the object to clone
- * @return {Object} a new object similar to the original but without the specified property
+ * @param {String} prop The name of the property to dissociate
+ * @param {Object} obj The object to clone
+ * @return {Object} A new object equivalent to the original but without the specified property
  * @see R.assoc
@@ -24,7 +24,6 @@ * @example
   for (var p in obj) {
-    if (p !== prop) {
-      result[p] = obj[p];
-    }
+    result[p] = obj[p];
   }
+  delete result[prop];
   return result;
 });

src/dissocPath.js

 var _curry2 = require('./internal/_curry2');
-var _slice = require('./internal/_slice');
 var assoc = require('./assoc');
@@ -17,5 +16,5 @@ var dissoc = require('./dissoc');
  * @sig [String] -> {k: v} -> {k: v}
- * @param {Array} path the path to set
- * @param {Object} obj the object to clone
- * @return {Object} a new object without the property at path
+ * @param {Array} path The path to the value to omit
+ * @param {Object} obj The object to clone
+ * @return {Object} A new object without the property at path
  * @see R.assocPath
@@ -34,5 +33,5 @@ * @example
       var head = path[0];
-      var tail = _slice(path, 1);
+      var tail = Array.prototype.slice.call(path, 1);
       return obj[head] == null ? obj : assoc(head, dissocPath(tail, obj[head]), obj);
   }
 });

src/drop.js

@@ -20,5 +20,5 @@ var _curry2 = require('./internal/_curry2');
  * @param {Number} n
- * @param {*} list
- * @return {*}
- * @see R.take, R.transduce
+ * @param {[a]} list
+ * @return {[a]} A copy of list without the first `n` elements
+ * @see R.take, R.transduce, R.dropLast, R.dropWhile
  * @example
@@ -32,4 +32,4 @@ *
  */
-module.exports = _curry2(_dispatchable('drop', _xdrop, function drop(n, xs) {
+module.exports = _curry2(_dispatchable(['drop'], _xdrop, function drop(n, xs) {
   return slice(Math.max(0, n), Infinity, xs);
 }));

src/dropLast.js

@@ -16,6 +16,6 @@ var _curry2 = require('./internal/_curry2');
  * @sig Number -> String -> String
- * @param {Number} n The number of elements of `xs` to skip.
- * @param {Array} xs The collection to consider.
- * @return {Array}
- * @see R.takeLast
+ * @param {Number} n The number of elements of `list` to skip.
+ * @param {Array} list The list of elements to consider.
+ * @return {Array} A copy of the list with only the first `list.length - n` elements
+ * @see R.takeLast, R.drop, R.dropWhile, R.dropLastWhile
  * @example
@@ -29,2 +29,2 @@ *
  */
-module.exports = _curry2(_dispatchable('dropLast', _xdropLast, _dropLast));
+module.exports = _curry2(_dispatchable([], _xdropLast, _dropLast));

src/dropLastWhile.js

@@ -10,4 +10,4 @@ var _curry2 = require('./internal/_curry2');
  * satisfy the supplied predicate function. It passes each value from the right
- * to the supplied predicate function, skipping elements while the predicate
- * function returns `true`. The predicate function is applied to one argument:
+ * to the supplied predicate function, skipping elements until the predicate
+ * function returns a `falsy` value. The predicate function is applied to one argument:
  * *(value)*.
@@ -20,6 +20,6 @@ *
  * @sig (a -> Boolean) -> [a] -> [a]
- * @param {Function} fn The function called per iteration.
+ * @param {Function} predicate The function to be called on each element
  * @param {Array} list The collection to iterate over.
- * @return {Array} A new array.
- * @see R.takeLastWhile, R.addIndex
+ * @return {Array} A new array without any trailing elements that return `falsy` values from the `predicate`.
+ * @see R.takeLastWhile, R.addIndex, R.drop, R.dropWhile
  * @example
@@ -31,2 +31,2 @@ *
  */
-module.exports = _curry2(_dispatchable('dropLastWhile', _xdropLastWhile, _dropLastWhile));
+module.exports = _curry2(_dispatchable([], _xdropLastWhile, _dropLastWhile));

src/dropRepeats.js

@@ -12,4 +12,2 @@ var _curry1 = require('./internal/_curry1');
  *
- * Dispatches to the `dropRepeats` method of the first argument, if present.
- *
  * Acts as a transducer if a transformer is given in list position.
@@ -29,2 +27,2 @@ *
  */
-module.exports = _curry1(_dispatchable('dropRepeats', _xdropRepeatsWith(equals), dropRepeatsWith(equals)));
+module.exports = _curry1(_dispatchable([], _xdropRepeatsWith(equals), dropRepeatsWith(equals)));

src/dropRepeatsWith.js

@@ -9,7 +9,5 @@ var _curry2 = require('./internal/_curry2');
  * Returns a new list without any consecutively repeating elements. Equality is
- * determined by applying the supplied predicate two consecutive elements. The
- * first element in a series of equal element is the one being preserved.
+ * determined by applying the supplied predicate to each pair of consecutive elements. The
+ * first element in a series of equal elements will be preserved.
  *
- * Dispatches to the `dropRepeatsWith` method of the second argument, if present.
- *
  * Acts as a transducer if a transformer is given in list position.
@@ -31,3 +29,3 @@ *
  */
-module.exports = _curry2(_dispatchable('dropRepeatsWith', _xdropRepeatsWith, function dropRepeatsWith(pred, list) {
+module.exports = _curry2(_dispatchable([], _xdropRepeatsWith, function dropRepeatsWith(pred, list) {
   var result = [];
@@ -34,0 +32,0 @@ var idx = 1;

src/dropWhile.js

 var _curry2 = require('./internal/_curry2');
 var _dispatchable = require('./internal/_dispatchable');
-var _slice = require('./internal/_slice');
 var _xdropWhile = require('./internal/_xdropWhile');
@@ -32,3 +31,3 @@
  */
-module.exports = _curry2(_dispatchable('dropWhile', _xdropWhile, function dropWhile(pred, list) {
+module.exports = _curry2(_dispatchable(['dropWhile'], _xdropWhile, function dropWhile(pred, list) {
   var idx = 0;
@@ -39,3 +38,3 @@ var len = list.length;
   }
-  return _slice(list, idx);
+  return Array.prototype.slice.call(list, idx);
 }));

src/evolve.js

@@ -37,7 +37,7 @@ var _curry2 = require('./internal/_curry2');
     type = typeof transformation;
-    result[key] = type === 'function' ? transformation(object[key])
-                : type === 'object'   ? evolve(transformations[key], object[key])
-                                      : object[key];
+    result[key] = type === 'function'                 ? transformation(object[key])
+                : transformation && type === 'object' ? evolve(transformation, object[key])
+                                                      : object[key];
   }
   return result;
 });

src/filter.js

@@ -36,3 +36,3 @@ var _curry2 = require('./internal/_curry2');
  */
-module.exports = _curry2(_dispatchable('filter', _xfilter, function(pred, filterable) {
+module.exports = _curry2(_dispatchable(['filter'], _xfilter, function(pred, filterable) {
   return (
@@ -39,0 +39,0 @@ _isObject(filterable) ?

src/find.js

@@ -30,3 +30,3 @@ var _curry2 = require('./internal/_curry2');
  */
-module.exports = _curry2(_dispatchable('find', _xfind, function find(fn, list) {
+module.exports = _curry2(_dispatchable(['find'], _xfind, function find(fn, list) {
   var idx = 0;
@@ -33,0 +33,0 @@ var len = list.length;

src/findIndex.js

@@ -10,4 +10,2 @@ var _curry2 = require('./internal/_curry2');
  *
- * Dispatches to the `findIndex` method of the second argument, if present.
- *
  * Acts as a transducer if a transformer is given in list position.
@@ -31,3 +29,3 @@ *
  */
-module.exports = _curry2(_dispatchable('findIndex', _xfindIndex, function findIndex(fn, list) {
+module.exports = _curry2(_dispatchable([], _xfindIndex, function findIndex(fn, list) {
   var idx = 0;
@@ -34,0 +32,0 @@ var len = list.length;

src/findLast.js

@@ -10,4 +10,2 @@ var _curry2 = require('./internal/_curry2');
  *
- * Dispatches to the `findLast` method of the second argument, if present.
- *
  * Acts as a transducer if a transformer is given in list position.
@@ -31,3 +29,3 @@ *
  */
-module.exports = _curry2(_dispatchable('findLast', _xfindLast, function findLast(fn, list) {
+module.exports = _curry2(_dispatchable([], _xfindLast, function findLast(fn, list) {
   var idx = list.length - 1;
@@ -34,0 +32,0 @@ while (idx >= 0) {

src/findLastIndex.js

@@ -10,4 +10,2 @@ var _curry2 = require('./internal/_curry2');
  *
- * Dispatches to the `findLastIndex` method of the second argument, if present.
- *
  * Acts as a transducer if a transformer is given in list position.
@@ -31,3 +29,3 @@ *
  */
-module.exports = _curry2(_dispatchable('findLastIndex', _xfindLastIndex, function findLastIndex(fn, list) {
+module.exports = _curry2(_dispatchable([], _xfindLastIndex, function findLastIndex(fn, list) {
   var idx = list.length - 1;
@@ -34,0 +32,0 @@ while (idx >= 0) {

src/flip.js

 var _curry1 = require('./internal/_curry1');
-var _slice = require('./internal/_slice');
 var curry = require('./curry');
@@ -24,6 +23,7 @@
  *      R.flip(mergeThree)(1, 2, 3); //=> [2, 1, 3]
+ * @symb R.flip(f)(a, b, c) = f(b, a, c)
  */
 module.exports = _curry1(function flip(fn) {
   return curry(function(a, b) {
-    var args = _slice(arguments);
+    var args = Array.prototype.slice.call(arguments, 0);
     args[0] = b;
@@ -30,0 +30,0 @@ args[1] = a;

src/forEach.js

@@ -37,2 +37,3 @@ var _checkForMethod = require('./internal/_checkForMethod');
  *      // logs 8
+ * @symb R.forEach(f, [a, b, c]) = [a, b, c]
  */
@@ -39,0 +40,0 @@ module.exports = _curry2(_checkForMethod('forEach', function forEach(fn, list) {

src/identity.js

@@ -22,3 +22,4 @@ var _curry1 = require('./internal/_curry1');
  *      R.identity(obj) === obj; //=> true
+ * @symb R.identity(a) = a
  */
 module.exports = _curry1(_identity);

src/inc.js

@@ -13,3 +13,3 @@ var add = require('./add');
  * @param {Number} n
- * @return {Number}
+ * @return {Number} n + 1
  * @see R.dec
@@ -16,0 +16,0 @@ * @example

src/insert.js

 var _curry3 = require('./internal/_curry3');
-var _slice = require('./internal/_slice');
 
@@ -25,5 +24,5 @@
   idx = idx < list.length && idx >= 0 ? idx : list.length;
-  var result = _slice(list);
+  var result = Array.prototype.slice.call(list, 0);
   result.splice(idx, 0, elt);
   return result;
 });

src/insertAll.js

@@ -1,4 +0,2 @@
-var _concat = require('./internal/_concat');
 var _curry3 = require('./internal/_curry3');
-var _slice = require('./internal/_slice');
 
@@ -26,3 +24,5 @@
   idx = idx < list.length && idx >= 0 ? idx : list.length;
-  return _concat(_concat(_slice(list, 0, idx), elts), _slice(list, idx));
+  return [].concat(Array.prototype.slice.call(list, 0, idx),
+                   elts,
+                   Array.prototype.slice.call(list, idx));
 });

src/internal/_aperture.js

@@ -1,3 +0,1 @@
-var _slice = require('./_slice');
-
 module.exports = function _aperture(n, list) {
@@ -8,3 +6,3 @@ var idx = 0;
   while (idx < limit) {
-    acc[idx] = _slice(list, idx, idx + n);
+    acc[idx] = Array.prototype.slice.call(list, idx, idx + n);
     idx += 1;
@@ -11,0 +9,0 @@ }

src/internal/_checkForMethod.js

 var _isArray = require('./_isArray');
-var _slice = require('./_slice');
 
 
 /**
- * Similar to hasMethod, this checks whether a function has a [methodname]
- * function. If it isn't an array it will execute that function otherwise it
- * will default to the ramda implementation.
+ * This checks whether a function has a [methodname] function. If it isn't an
+ * array it will execute that function otherwise it will default to the ramda
+ * implementation.
  *
@@ -24,4 +23,4 @@ * @private
       fn.apply(this, arguments) :
-      obj[methodname].apply(obj, _slice(arguments, 0, length - 1));
+      obj[methodname].apply(obj, Array.prototype.slice.call(arguments, 0, length - 1));
   };
 };

src/internal/_dispatchable.js

 var _isArray = require('./_isArray');
 var _isTransformer = require('./_isTransformer');
-var _slice = require('./_slice');
 
@@ -9,9 +8,9 @@
  * object in list position (last argument). If it is an array, executes [fn].
- * Otherwise, if it has a function with [methodname], it will execute that
- * function (functor case). Otherwise, if it is a transformer, uses transducer
- * [xf] to return a new transformer (transducer case). Otherwise, it will
- * default to executing [fn].
+ * Otherwise, if it has a function with one of the given method names, it will
+ * execute that function (functor case). Otherwise, if it is a transformer,
+ * uses transducer [xf] to return a new transformer (transducer case).
+ * Otherwise, it will default to executing [fn].
  *
  * @private
- * @param {String} methodname property to check for a custom implementation
+ * @param {Array} methodNames properties to check for a custom implementation
  * @param {Function} xf transducer to initialize if object is transformer
@@ -21,13 +20,16 @@ * @param {Function} fn default ramda implementation
  */
-module.exports = function _dispatchable(methodname, xf, fn) {
+module.exports = function _dispatchable(methodNames, xf, fn) {
   return function() {
-    var length = arguments.length;
-    if (length === 0) {
+    if (arguments.length === 0) {
       return fn();
     }
-    var obj = arguments[length - 1];
+    var args = Array.prototype.slice.call(arguments, 0);
+    var obj = args.pop();
     if (!_isArray(obj)) {
-      var args = _slice(arguments, 0, length - 1);
-      if (typeof obj[methodname] === 'function') {
-        return obj[methodname].apply(obj, args);
+      var idx = 0;
+      while (idx < methodNames.length) {
+        if (typeof obj[methodNames[idx]] === 'function') {
+          return obj[methodNames[idx]].apply(obj, args);
+        }
+        idx += 1;
       }
@@ -34,0 +36,0 @@ if (_isTransformer(obj)) {

src/internal/_dropLastWhile.js

@@ -1,3 +0,1 @@
-var _slice = require('./_slice');
-
 module.exports = function dropLastWhile(pred, list) {
@@ -8,3 +6,3 @@ var idx = list.length - 1;
   }
-  return _slice(list, 0, idx + 1);
+  return Array.prototype.slice.call(list, 0, idx + 1);
 };

src/internal/_Set.js

@@ -109,3 +109,3 @@ var _contains = require('./_contains');
             newSize = set._nativeSet.size;
-            return (newSize > prevSize);
+            return newSize === prevSize;
           } else {
@@ -112,0 +112,0 @@ return set._nativeSet.has(item);

src/internal/_xaperture.js

 var _concat = require('./_concat');
 var _curry2 = require('./_curry2');
-var _slice = require('./_slice');
 var _xfBase = require('./_xfBase');
@@ -32,3 +31,4 @@
   XAperture.prototype.getCopy = function() {
-    return _concat(_slice(this.acc, this.pos), _slice(this.acc, 0, this.pos));
+    return _concat(Array.prototype.slice.call(this.acc, this.pos),
+                   Array.prototype.slice.call(this.acc, 0, this.pos));
   };
@@ -35,0 +35,0 @@

src/internal/_xdropRepeatsWith.js

 var _curry2 = require('./_curry2');
+var _xfBase = require('./_xfBase');
 
@@ -11,8 +12,5 @@
   }
-  XDropRepeatsWith.prototype['@@transducer/init'] = function() {
-    return this.xf['@@transducer/init']();
-  };
-  XDropRepeatsWith.prototype['@@transducer/result'] = function(result) {
-    return this.xf['@@transducer/result'](result);
-  };
+
+  XDropRepeatsWith.prototype['@@transducer/init'] = _xfBase.init;
+  XDropRepeatsWith.prototype['@@transducer/result'] = _xfBase.result;
   XDropRepeatsWith.prototype['@@transducer/step'] = function(result, input) {
@@ -19,0 +17,0 @@ var sameAsLast = false;

src/intersectionWith.js

@@ -15,3 +15,3 @@ var _containsWith = require('./internal/_containsWith');
  * @category Relation
- * @sig (a -> a -> Boolean) -> [*] -> [*] -> [*]
+ * @sig ((a, a) -> Boolean) -> [a] -> [a] -> [a]
  * @param {Function} pred A predicate function that determines whether
@@ -18,0 +18,0 @@ *        the two supplied elements are equal.

src/invoker.js

 var _curry2 = require('./internal/_curry2');
 var _isFunction = require('./internal/_isFunction');
-var _slice = require('./internal/_slice');
 var curryN = require('./curryN');
@@ -30,2 +29,5 @@ var toString = require('./toString');
  *      sliceFrom6(8, 'abcdefghijklm'); //=> 'gh'
+ * @symb R.invoker(0, 'method')(o) = o['method']()
+ * @symb R.invoker(1, 'method')(a, o) = o['method'](a)
+ * @symb R.invoker(2, 'method')(a, b, o) = o['method'](a, b)
  */
@@ -36,3 +38,3 @@ module.exports = _curry2(function invoker(arity, method) {
     if (target != null && _isFunction(target[method])) {
-      return target[method].apply(target, _slice(arguments, 0, arity));
+      return target[method].apply(target, Array.prototype.slice.call(arguments, 0, arity));
     }
@@ -39,0 +41,0 @@ throw new TypeError(toString(target) + ' does not have a method named "' + method + '"');

src/isArrayLike.js

@@ -17,2 +17,3 @@ var _curry1 = require('./internal/_curry1');
  * @return {Boolean} `true` if `x` has a numeric length property and extreme indices defined; `false` otherwise.
+ * @deprecated since v0.23.0
  * @example
@@ -19,0 +20,0 @@ *

src/juxt.js

@@ -1,2 +0,1 @@
-var _arrayOf = require('./internal/_arrayOf');
 var _curry1 = require('./internal/_curry1');
@@ -21,5 +20,6 @@ var converge = require('./converge');
  *      getRange(3, 4, 9, -3); //=> [-3, 9]
+ * @symb R.juxt([f, g, h])(a, b) = [f(a, b), g(a, b), h(a, b)]
  */
 module.exports = _curry1(function juxt(fns) {
-  return converge(_arrayOf, fns);
+  return converge(function() { return Array.prototype.slice.call(arguments, 0); }, fns);
 });

src/lensPath.js

@@ -14,4 +14,5 @@ var _curry1 = require('./internal/_curry1');
  * @category Object
+ * @typedefn Idx = String | Int
  * @typedefn Lens s a = Functor f => (a -> f a) -> s -> f s
- * @sig [String] -> Lens s a
+ * @sig [Idx] -> Lens s a
  * @param {Array} path The path to use.
@@ -22,7 +23,10 @@ * @return {Lens}
  *
- *      var xyLens = R.lensPath(['x', 'y']);
+ *      var xHeadYLens = R.lensPath(['x', 0, 'y']);
  *
- *      R.view(xyLens, {x: {y: 2, z: 3}});            //=> 2
- *      R.set(xyLens, 4, {x: {y: 2, z: 3}});          //=> {x: {y: 4, z: 3}}
- *      R.over(xyLens, R.negate, {x: {y: 2, z: 3}});  //=> {x: {y: -2, z: 3}}
+ *      R.view(xHeadYLens, {x: [{y: 2, z: 3}, {y: 4, z: 5}]});
+ *      //=> 2
+ *      R.set(xHeadYLens, 1, {x: [{y: 2, z: 3}, {y: 4, z: 5}]});
+ *      //=> {x: [{y: 1, z: 3}, {y: 4, z: 5}]}
+ *      R.over(xHeadYLens, R.negate, {x: [{y: 2, z: 3}, {y: 4, z: 5}]});
+ *      //=> {x: [{y: -2, z: 3}, {y: 4, z: 5}]}
  */
@@ -29,0 +33,0 @@ module.exports = _curry1(function lensPath(p) {

src/lift.js

@@ -19,7 +19,7 @@ var _curry1 = require('./internal/_curry1');
  *
- *      var madd3 = R.lift(R.curry((a, b, c) => a + b + c));
+ *      var madd3 = R.lift((a, b, c) => a + b + c);
  *
  *      madd3([1,2,3], [1,2,3], [1]); //=> [3, 4, 5, 4, 5, 6, 5, 6, 7]
  *
- *      var madd5 = R.lift(R.curry((a, b, c, d, e) => a + b + c + d + e));
+ *      var madd5 = R.lift((a, b, c, d, e) => a + b + c + d + e);
  *
@@ -26,0 +26,0 @@ *      madd5([1,2], [3], [4, 5], [6], [7, 8]); //=> [21, 22, 22, 23, 22, 23, 23, 24]

src/liftN.js

 var _curry2 = require('./internal/_curry2');
 var _reduce = require('./internal/_reduce');
-var _slice = require('./internal/_slice');
 var ap = require('./ap');
@@ -23,3 +22,3 @@ var curryN = require('./curryN');
  *
- *      var madd3 = R.liftN(3, R.curryN(3, (...args) => R.sum(args)));
+ *      var madd3 = R.liftN(3, (...args) => R.sum(args));
  *      madd3([1,2,3], [1,2,3], [1]); //=> [3, 4, 5, 4, 5, 6, 5, 6, 7]
@@ -30,4 +29,4 @@ */
   return curryN(arity, function() {
-    return _reduce(ap, map(lifted, arguments[0]), _slice(arguments, 1));
+    return _reduce(ap, map(lifted, arguments[0]), Array.prototype.slice.call(arguments, 1));
   });
 });

src/map.js

@@ -41,4 +41,7 @@ var _curry2 = require('./internal/_curry2');
  *      R.map(double, {x: 1, y: 2, z: 3}); //=> {x: 2, y: 4, z: 6}
+ * @symb R.map(f, [a, b]) = [f(a), f(b)]
+ * @symb R.map(f, { x: a, y: b }) = { x: f(a), y: f(b) }
+ * @symb R.map(f, functor_o) = functor_o.map(f)
  */
-module.exports = _curry2(_dispatchable('map', _xmap, function map(fn, functor) {
+module.exports = _curry2(_dispatchable(['map'], _xmap, function map(fn, functor) {
   switch (Object.prototype.toString.call(functor)) {
@@ -45,0 +48,0 @@ case '[object Function]':

src/mapAccum.js

@@ -22,3 +22,3 @@ var _curry3 = require('./internal/_curry3');
  * @return {*} The final, accumulated value.
- * @see R.addIndex
+ * @see R.addIndex, R.mapAccumRight
  * @example
@@ -30,2 +30,10 @@ *
  *      R.mapAccum(appender, 0, digits); //=> ['01234', ['01', '012', '0123', '01234']]
+ * @symb R.mapAccum(f, a, [b, c, d]) = [
+ *   f(f(f(a, b)[0], c)[0], d)[0],
+ *   [
+ *     f(a, b)[1],
+ *     f(f(a, b)[0], c)[1],
+ *     f(f(f(a, b)[0], c)[0], d)[1]
+ *   ]
+ * ]
  */
@@ -32,0 +40,0 @@ module.exports = _curry3(function mapAccum(fn, acc, list) {

src/mapAccumRight.js

@@ -13,4 +13,4 @@ var _curry3 = require('./internal/_curry3');
  *
- * The iterator function receives two arguments, *acc* and *value*, and should
- * return a tuple *[acc, value]*.
+ * The iterator function receives two arguments, *value* and *acc*, and should
+ * return a tuple *[value, acc]*.
  *
@@ -21,3 +21,3 @@ * @func
  * @category List
- * @sig (acc -> x -> (acc, y)) -> acc -> [x] -> (acc, [y])
+ * @sig (x-> acc -> (y, acc)) -> acc -> [x] -> ([y], acc)
  * @param {Function} fn The function to be called on every element of the input `list`.
@@ -27,3 +27,3 @@ * @param {*} acc The accumulator value.
  * @return {*} The final, accumulated value.
- * @see R.addIndex
+ * @see R.addIndex, R.mapAccum
  * @example
@@ -34,3 +34,11 @@ *
  *
- *      R.mapAccumRight(append, 0, digits); //=> ['04321', ['04321', '0432', '043', '04']]
+ *      R.mapAccumRight(append, 5, digits); //=> [['12345', '2345', '345', '45'], '12345']
+ * @symb R.mapAccumRight(f, a, [b, c, d]) = [
+ *   [
+ *     f(b, f(c, f(d, a)[0])[0])[1],
+ *     f(c, f(d, a)[0])[1],
+ *     f(d, a)[1],
+ *   ]
+ *   f(b, f(c, f(d, a)[0])[0])[0],
+ * ]
  */
@@ -42,7 +50,7 @@ module.exports = _curry3(function mapAccumRight(fn, acc, list) {
   while (idx >= 0) {
-    tuple = fn(tuple[0], list[idx]);
+    tuple = fn(list[idx], tuple[0]);
     result[idx] = tuple[1];
     idx -= 1;
   }
-  return [tuple[0], result];
+  return [result, tuple[0]];
 });

src/median.js

 var _curry1 = require('./internal/_curry1');
-var _slice = require('./internal/_slice');
 var mean = require('./mean');
@@ -29,5 +28,5 @@
   var idx = (len - width) / 2;
-  return mean(_slice(list).sort(function(a, b) {
+  return mean(Array.prototype.slice.call(list, 0).sort(function(a, b) {
     return a < b ? -1 : a > b ? 1 : 0;
   }).slice(idx, idx + width));
 });

src/merge.js

@@ -26,2 +26,3 @@ var _assign = require('./internal/_assign');
  *      resetToDefault({x: 5, y: 2}); //=> {x: 0, y: 2}
+ * @symb R.merge({ x: 1, y: 2 }, { y: 5, z: 3 }) = { x: 1, y: 5, z: 3 }
  */
@@ -28,0 +29,0 @@ module.exports = _curry2(function merge(l, r) {

src/mergeAll.js

@@ -20,2 +20,3 @@ var _assign = require('./internal/_assign');
  *      R.mergeAll([{foo:1},{foo:2},{bar:2}]); //=> {foo:2,bar:2}
+ * @symb R.mergeAll([{ x: 1 }, { y: 2 }, { z: 3 }]) = { x: 1, y: 2, z: 3 }
  */
@@ -22,0 +23,0 @@ module.exports = _curry1(function mergeAll(list) {

src/mergeWithKey.js

@@ -30,2 +30,3 @@ var _curry3 = require('./internal/_curry3');
  *      //=> { a: true, b: true, thing: 'bar', values: [10, 20, 15, 35] }
+ * @symb R.mergeWithKey(f, { x: 1, y: 2 }, { y: 5, z: 3 }) = { x: 1, y: f('y', 2, 5), z: 3 }
  */
@@ -32,0 +33,0 @@ module.exports = _curry3(function mergeWithKey(fn, l, r) {

src/nAry.js

@@ -29,2 +29,5 @@ var _curry2 = require('./internal/_curry2');
  *      takesOneArg(1, 2); //=> [1, undefined]
+ * @symb R.nAry(0, f)(a, b) = f()
+ * @symb R.nAry(1, f)(a, b) = f(a)
+ * @symb R.nAry(2, f)(a, b) = f(a, b)
  */
@@ -31,0 +34,0 @@ module.exports = _curry2(function nAry(n, fn) {

src/none.js

@@ -30,2 +30,2 @@ var _complement = require('./internal/_complement');
  */
-module.exports = _curry2(_complement(_dispatchable('any', _xany, any)));
+module.exports = _curry2(_complement(_dispatchable(['any'], _xany, any)));

src/nth.js

@@ -27,2 +27,5 @@ var _curry2 = require('./internal/_curry2');
  *      R.nth(3, 'abc'); //=> ''
+ * @symb R.nth(-1, [a, b, c]) = c
+ * @symb R.nth(0, [a, b, c]) = a
+ * @symb R.nth(1, [a, b, c]) = b
  */
@@ -29,0 +32,0 @@ module.exports = _curry2(function nth(offset, list) {

src/nthArg.js

@@ -20,2 +20,5 @@ var _curry1 = require('./internal/_curry1');
  *      R.nthArg(-1)('a', 'b', 'c'); //=> 'c'
+ * @symb R.nthArg(-1)(a, b, c) = c
+ * @symb R.nthArg(0)(a, b, c) = a
+ * @symb R.nthArg(1)(a, b, c) = b
  */
@@ -22,0 +25,0 @@ module.exports = _curry1(function nthArg(n) {

src/or.js

@@ -12,6 +12,6 @@ var _curry2 = require('./internal/_curry2');
  * @category Logic
- * @sig * -> * -> *
- * @param {Boolean} a A boolean value
- * @param {Boolean} b A boolean value
- * @return {Boolean} `true` if one or both arguments are `true`, `false` otherwise
+ * @sig a -> b -> a | b
+ * @param {Any} a
+ * @param {Any} b
+ * @return {Any} the first argument if truthy, otherwise the second argument.
  * @see R.either
@@ -18,0 +18,0 @@ * @example

src/partial.js

@@ -21,4 +21,4 @@ var _concat = require('./internal/_concat');
  *
- *      var multiply = (a, b) => a * b;
- *      var double = R.partial(multiply, [2]);
+ *      var multiply2 = (a, b) => a * b;
+ *      var double = R.partial(multiply2, [2]);
  *      double(2); //=> 4
@@ -32,3 +32,4 @@ *
  *      sayHelloToMs('Jane', 'Jones'); //=> 'Hello, Ms. Jane Jones!'
+ * @symb R.partial(f, [a, b])(c, d) = f(a, b, c, d)
  */
 module.exports = _createPartialApplicator(_concat);

src/partialRight.js

@@ -28,3 +28,4 @@ var _concat = require('./internal/_concat');
  *      greetMsJaneJones('Hello'); //=> 'Hello, Ms. Jane Jones!'
+ * @symb R.partialRight(f, [a, b])(c, d) = f(c, d, a, b)
  */
 module.exports = _createPartialApplicator(flip(_concat));

src/path.js

@@ -11,3 +11,4 @@ var _curry2 = require('./internal/_curry2');
  * @category Object
- * @sig [String] -> {k: v} -> v | Undefined
+ * @typedefn Idx = String | Int
+ * @sig [Idx] -> {a} -> a | Undefined
  * @param {Array} path The path to use.
@@ -14,0 +15,0 @@ * @param {Object} obj The object to retrieve the nested property from.

src/pathEq.js

@@ -14,3 +14,4 @@ var _curry3 = require('./internal/_curry3');
  * @category Relation
- * @sig [String] -> * -> {String: *} -> Boolean
+ * @typedefn Idx = String | Int
+ * @sig [Idx] -> a -> {a} -> Boolean
  * @param {Array} path The path of the nested property to use
@@ -17,0 +18,0 @@ * @param {*} val The value to compare the nested property with

src/pathOr.js

@@ -14,3 +14,4 @@ var _curry3 = require('./internal/_curry3');
  * @category Object
- * @sig a -> [String] -> Object -> a
+ * @typedefn Idx = String | Int
+ * @sig a -> [Idx] -> {a} -> a
  * @param {*} d The default value.
@@ -17,0 +18,0 @@ * @param {Array} p The path to use.

src/pathSatisfies.js

@@ -13,3 +13,4 @@ var _curry3 = require('./internal/_curry3');
  * @category Logic
- * @sig (a -> Boolean) -> [String] -> Object -> Boolean
+ * @typedefn Idx = String | Int
+ * @sig (a -> Boolean) -> [Idx] -> {a} -> Boolean
  * @param {Function} pred
@@ -16,0 +17,0 @@ * @param {Array} propPath

src/pipe.js

@@ -28,2 +28,3 @@ var _arity = require('./internal/_arity');
  *      f(3, 4); // -(3^4) + 1
+ * @symb R.pipe(f, g, h)(a, b) = h(g(f(a, b)))
  */
@@ -30,0 +31,0 @@ module.exports = function pipe() {

src/pipeK.js

@@ -14,3 +14,3 @@ var composeK = require('./composeK');
  * @category Function
- * @sig Chain m => ((a -> m b), (b -> m c), ..., (y -> m z)) -> (m a -> m z)
+ * @sig Chain m => ((a -> m b), (b -> m c), ..., (y -> m z)) -> (a -> m z)
  * @param {...Function}
@@ -33,9 +33,13 @@ * @return {Function}
  *
- *      getStateCode(Maybe.of('{"user":{"address":{"state":"ny"}}}'));
+ *      getStateCode('{"user":{"address":{"state":"ny"}}}');
  *      //=> Just('NY')
- *      getStateCode(Maybe.of('[Invalid JSON]'));
+ *      getStateCode('[Invalid JSON]');
  *      //=> Nothing()
+ * @symb R.pipeK(f, g, h)(a) = R.chain(h, R.chain(g, f(a)))
  */
 module.exports = function pipeK() {
+  if (arguments.length === 0) {
+    throw new Error('pipeK requires at least one argument');
+  }
   return composeK.apply(this, reverse(arguments));
 };

src/pluck.js

@@ -23,2 +23,4 @@ var _curry2 = require('./internal/_curry2');
  *      R.pluck(0)([[1, 2], [3, 4]]);   //=> [1, 3]
+ * @symb R.pluck('x', [{x: 1, y: 2}, {x: 3, y: 4}, {x: 5, y: 6}]) = [1, 3, 5]
+ * @symb R.pluck(0, [[1, 2], [3, 4], [5, 6]]) = [1, 3, 5]
  */
@@ -25,0 +27,0 @@ module.exports = _curry2(function pluck(p, list) {

src/reduce.js

@@ -13,2 +13,4 @@ var _curry3 = require('./internal/_curry3');
  *
+ * The arguments' order of `reduceRight`'s iterator function is *(value, acc)*.
+ *
  * Note: `R.reduce` does not skip deleted or unassigned indices (sparse
@@ -31,10 +33,18 @@ * arrays), unlike the native `Array.prototype.reduce` method. For more details
  * @return {*} The final, accumulated value.
- * @see R.reduced, R.addIndex
+ * @see R.reduced, R.addIndex, R.reduceRight
  * @example
  *
- *      var numbers = [1, 2, 3];
- *      var plus = (a, b) => a + b;
+ *      R.reduce(R.subtract, 0, [1, 2, 3, 4]) // => ((((0 - 1) - 2) - 3) - 4) = -10
+ *                -               -10
+ *               / \              / \
+ *              -   4           -6   4
+ *             / \              / \
+ *            -   3   ==>     -3   3
+ *           / \              / \
+ *          -   2           -1   2
+ *         / \              / \
+ *        0   1            0   1
  *
- *      R.reduce(plus, 10, numbers); //=> 16
+ * @symb R.reduce(f, a, [b, c, d]) = f(f(f(a, b), c), d)
  */
 module.exports = _curry3(_reduce);

src/reduceBy.js

@@ -52,3 +52,3 @@ var _curryN = require('./internal/_curryN');
  */
-module.exports = _curryN(4, [], _dispatchable('reduceBy', _xreduceBy,
+module.exports = _curryN(4, [], _dispatchable([], _xreduceBy,
   function reduceBy(valueFn, valueAcc, keyFn, list) {
@@ -55,0 +55,0 @@ return _reduce(function(acc, elt) {

src/reduceRight.js

@@ -12,3 +12,4 @@ var _curry3 = require('./internal/_curry3');
  *
- * The iterator function receives two values: *(acc, value)*
+ * The iterator function receives two values: *(value, acc)*, while the arguments'
+ * order of `reduce`'s iterator function is *(acc, value)*.
  *
@@ -24,15 +25,23 @@ * Note: `R.reduceRight` does not skip deleted or unassigned indices (sparse
  * @category List
- * @sig (a,b -> a) -> a -> [b] -> a
- * @param {Function} fn The iterator function. Receives two values, the accumulator and the
- *        current element from the array.
+ * @sig (a, b -> b) -> b -> [a] -> b
+ * @param {Function} fn The iterator function. Receives two values, the current element from the array
+ *        and the accumulator.
  * @param {*} acc The accumulator value.
  * @param {Array} list The list to iterate over.
  * @return {*} The final, accumulated value.
- * @see R.addIndex
+ * @see R.reduce, R.addIndex
  * @example
  *
- *      var pairs = [ ['a', 1], ['b', 2], ['c', 3] ];
- *      var flattenPairs = (acc, pair) => acc.concat(pair);
+ *      R.reduceRight(R.subtract, 0, [1, 2, 3, 4]) // => (1 - (2 - (3 - (4 - 0)))) = -2
+ *          -               -2
+ *         / \              / \
+ *        1   -            1   3
+ *           / \              / \
+ *          2   -     ==>    2  -1
+ *             / \              / \
+ *            3   -            3   4
+ *               / \              / \
+ *              4   0            4   0
  *
- *      R.reduceRight(flattenPairs, [], pairs); //=> [ 'c', 3, 'b', 2, 'a', 1 ]
+ * @symb R.reduceRight(f, a, [b, c, d]) = f(b, f(c, f(d, a)))
  */
@@ -42,3 +51,3 @@ module.exports = _curry3(function reduceRight(fn, acc, list) {
   while (idx >= 0) {
-    acc = fn(acc, list[idx]);
+    acc = fn(list[idx], acc);
     idx -= 1;
@@ -45,0 +54,0 @@ }

src/remove.js

@@ -1,4 +0,2 @@
-var _concat = require('./internal/_concat');
 var _curry3 = require('./internal/_curry3');
-var _slice = require('./internal/_slice');
 
@@ -26,4 +24,5 @@
 module.exports = _curry3(function remove(start, count, list) {
-  return _concat(_slice(list, 0, Math.min(start, list.length)),
-                 _slice(list, Math.min(list.length, start + count)));
+  var result = Array.prototype.slice.call(list, 0);
+  result.splice(start, count);
+  return result;
 });

src/repeat.js

@@ -24,2 +24,5 @@ var _curry2 = require('./internal/_curry2');
  *      repeatedObjs[0] === repeatedObjs[1]; //=> true
+ * @symb R.repeat(a, 0) = []
+ * @symb R.repeat(a, 1) = [a]
+ * @symb R.repeat(a, 2) = [a, a]
  */
@@ -26,0 +29,0 @@ module.exports = _curry2(function repeat(value, n) {

src/reverse.js

 var _curry1 = require('./internal/_curry1');
 var _isString = require('./internal/_isString');
-var _slice = require('./internal/_slice');
 
@@ -32,3 +31,3 @@
   return _isString(list) ? list.split('').reverse().join('') :
-                           _slice(list).reverse();
+                           Array.prototype.slice.call(list, 0).reverse();
 });

src/scan.js

@@ -22,2 +22,3 @@ var _curry3 = require('./internal/_curry3');
  *      var factorials = R.scan(R.multiply, 1, numbers); //=> [1, 1, 2, 6, 24]
+ * @symb R.scan(f, a, [b, c]) = [a, f(a, b), f(f(a, b), c)]
  */
@@ -24,0 +25,0 @@ module.exports = _curry3(function scan(fn, acc, list) {

src/sequence.js

@@ -35,5 +35,5 @@ var _curry2 = require('./internal/_curry2');
     traversable.sequence(of) :
-    reduceRight(function(acc, x) { return ap(map(prepend, x), acc); },
+    reduceRight(function(x, acc) { return ap(map(prepend, x), acc); },
                 of([]),
                 traversable);
 });

src/sort.js

 var _curry2 = require('./internal/_curry2');
-var _slice = require('./internal/_slice');
 
@@ -26,3 +25,3 @@
 module.exports = _curry2(function sort(comparator, list) {
-  return _slice(list).sort(comparator);
+  return Array.prototype.slice.call(list, 0).sort(comparator);
 });

src/sortBy.js

 var _curry2 = require('./internal/_curry2');
-var _slice = require('./internal/_slice');
 
@@ -38,3 +37,3 @@
 module.exports = _curry2(function sortBy(fn, list) {
-  return _slice(list).sort(function(a, b) {
+  return Array.prototype.slice.call(list, 0).sort(function(a, b) {
     var aa = fn(a);
@@ -41,0 +40,0 @@ var bb = fn(b);

src/splitWhen.js

 var _curry2 = require('./internal/_curry2');
-var _slice = require('./internal/_slice');
 
@@ -34,3 +33,3 @@
 
-  return [prefix, _slice(list, idx)];
+  return [prefix, Array.prototype.slice.call(list, idx)];
 });

src/symmetricDifferenceWith.js

@@ -15,3 +15,3 @@ var _curry3 = require('./internal/_curry3');
  * @category Relation
- * @sig (a -> a -> Boolean) -> [a] -> [a] -> [a]
+ * @sig ((a, a) -> Boolean) -> [a] -> [a] -> [a]
  * @param {Function} pred A predicate used to test whether two items are equal.
@@ -18,0 +18,0 @@ * @param {Array} list1 The first list.

src/tail.js

 var _checkForMethod = require('./internal/_checkForMethod');
+var _curry1 = require('./internal/_curry1');
 var slice = require('./slice');
@@ -32,2 +33,2 @@
  */
-module.exports = _checkForMethod('tail', slice(1, Infinity));
+module.exports = _curry1(_checkForMethod('tail', slice(1, Infinity)));

src/take.js

@@ -45,5 +45,9 @@ var _curry2 = require('./internal/_curry2');
  *      //=> ['Dave Brubeck', 'Paul Desmond', 'Eugene Wright', 'Joe Morello', 'Gerry Mulligan']
+ * @symb R.take(-1, [a, b]) = [a, b]
+ * @symb R.take(0, [a, b]) = []
+ * @symb R.take(1, [a, b]) = [a]
+ * @symb R.take(2, [a, b]) = [a, b]
  */
-module.exports = _curry2(_dispatchable('take', _xtake, function take(n, xs) {
+module.exports = _curry2(_dispatchable(['take'], _xtake, function take(n, xs) {
   return slice(0, n < 0 ? Infinity : n, xs);
 }));

src/takeLastWhile.js

 var _curry2 = require('./internal/_curry2');
-var _slice = require('./internal/_slice');
 
@@ -32,3 +31,3 @@
   }
-  return _slice(list, idx + 1, Infinity);
+  return Array.prototype.slice.call(list, idx + 1);
 });

src/takeWhile.js

 var _curry2 = require('./internal/_curry2');
 var _dispatchable = require('./internal/_dispatchable');
-var _slice = require('./internal/_slice');
 var _xtakeWhile = require('./internal/_xtakeWhile');
@@ -33,3 +32,3 @@
  */
-module.exports = _curry2(_dispatchable('takeWhile', _xtakeWhile, function takeWhile(fn, list) {
+module.exports = _curry2(_dispatchable(['takeWhile'], _xtakeWhile, function takeWhile(fn, list) {
   var idx = 0;
@@ -40,3 +39,3 @@ var len = list.length;
   }
-  return _slice(list, 0, idx);
+  return Array.prototype.slice.call(list, 0, idx);
 }));

src/tap.js

@@ -20,2 +20,3 @@ var _curry2 = require('./internal/_curry2');
  *      // logs 'x is 100'
+ * @symb R.tap(f, a) = a
  */
@@ -22,0 +23,0 @@ module.exports = _curry2(function tap(fn, x) {

src/times.js

@@ -22,2 +22,5 @@ var _curry2 = require('./internal/_curry2');
  *      R.times(R.identity, 5); //=> [0, 1, 2, 3, 4]
+ * @symb R.times(f, 0) = []
+ * @symb R.times(f, 1) = [f(0)]
+ * @symb R.times(f, 2) = [f(0), f(1)]
  */
@@ -24,0 +27,0 @@ module.exports = _curry2(function times(fn, n) {

src/transpose.js

@@ -25,2 +25,5 @@ var _curry1 = require('./internal/_curry1');
  *      R.transpose([[10, 11], [20], [], [30, 31, 32]]) //=> [[10, 20, 30], [11, 31], [32]]
+ * @symb R.transpose([[a], [b], [c]]) = [a, b, c]
+ * @symb R.transpose([[a, b], [c, d]]) = [[a, c], [b, d]]
+ * @symb R.transpose([[a, b], [c]]) = [[a, c], [b]]
  */
@@ -27,0 +30,0 @@ module.exports = _curry1(function transpose(outerlist) {

src/unapply.js

 var _curry1 = require('./internal/_curry1');
-var _slice = require('./internal/_slice');
 
@@ -27,7 +26,8 @@
  *      R.unapply(JSON.stringify)(1, 2, 3); //=> '[1,2,3]'
+ * @symb R.unapply(f)(a, b) = f([a, b])
  */
 module.exports = _curry1(function unapply(fn) {
   return function() {
-    return fn(_slice(arguments));
+    return fn(Array.prototype.slice.call(arguments, 0));
   };
 });

src/unary.js

@@ -30,2 +30,3 @@ var _curry1 = require('./internal/_curry1');
  *      takesOneArg(1, 2); //=> [1, undefined]
+ * @symb R.unary(f)(a, b, c) = f(a)
  */
@@ -32,0 +33,0 @@ module.exports = _curry1(function unary(fn) {

src/uncurryN.js

 var _curry2 = require('./internal/_curry2');
-var _slice = require('./internal/_slice');
 var curryN = require('./curryN');
@@ -33,3 +32,3 @@
       endIdx = currentDepth === depth ? arguments.length : idx + value.length;
-      value = value.apply(this, _slice(arguments, idx, endIdx));
+      value = value.apply(this, Array.prototype.slice.call(arguments, idx, endIdx));
       currentDepth += 1;
@@ -36,0 +35,0 @@ idx = endIdx;

src/unfold.js

@@ -27,2 +27,3 @@ var _curry2 = require('./internal/_curry2');
  *      R.unfold(f, 10); //=> [-10, -20, -30, -40, -50]
+ * @symb R.unfold(f, x) = [f(x)[0], f(f(x)[1])[0], f(f(f(x)[1])[1])[0], ...]
  */
@@ -29,0 +30,0 @@ module.exports = _curry2(function unfold(fn, seed) {

src/update.js

@@ -24,2 +24,5 @@ var _curry3 = require('./internal/_curry3');
  *      R.update(1)(11)([0, 1, 2]);     //=> [0, 11, 2]
+ * @symb R.update(-1, a, [b, c]) = [b, a]
+ * @symb R.update(0, a, [b, c]) = [a, c]
+ * @symb R.update(1, a, [b, c]) = [b, a]
  */
@@ -26,0 +29,0 @@ module.exports = _curry3(function update(idx, x, list) {

src/useWith.js

 var _curry2 = require('./internal/_curry2');
-var _slice = require('./internal/_slice');
 var curryN = require('./curryN');
@@ -26,2 +25,3 @@
  * @return {Function} The wrapped function.
+ * @see R.converge
  * @example
@@ -33,2 +33,3 @@ *
  *      R.useWith(Math.pow, [R.dec, R.inc])(3)(4); //=> 32
+ * @symb R.useWith(f, [g, h])(a, b) = f(g(a), h(b))
  */
@@ -43,4 +44,4 @@ module.exports = _curry2(function useWith(fn, transformers) {
     }
-    return fn.apply(this, args.concat(_slice(arguments, transformers.length)));
+    return fn.apply(this, args.concat(Array.prototype.slice.call(arguments, transformers.length)));
   });
 });

src/where.js

@@ -26,7 +26,7 @@ var _curry2 = require('./internal/_curry2');
  *      // pred :: Object -> Boolean
- *      var pred = where({
- *        a: equals('foo'),
- *        b: complement(equals('bar')),
- *        x: gt(__, 10),
- *        y: lt(__, 20)
+ *      var pred = R.where({
+ *        a: R.equals('foo'),
+ *        b: R.complement(R.equals('bar')),
+ *        x: R.gt(__, 10),
+ *        y: R.lt(__, 20)
  *      });
@@ -33,0 +33,0 @@ *

src/xprod.js

@@ -20,2 +20,3 @@ var _curry2 = require('./internal/_curry2');
  *      R.xprod([1, 2], ['a', 'b']); //=> [[1, 'a'], [1, 'b'], [2, 'a'], [2, 'b']]
+ * @symb R.xprod([a, b], [c, d]) = [[a, c], [a, d], [b, c], [b, d]]
  */
@@ -22,0 +23,0 @@ module.exports = _curry2(function xprod(a, b) { // = xprodWith(prepend); (takes about 3 times as long...)

src/zip.js

@@ -21,2 +21,3 @@ var _curry2 = require('./internal/_curry2');
  *      R.zip([1, 2, 3], ['a', 'b', 'c']); //=> [[1, 'a'], [2, 'b'], [3, 'c']]
+ * @symb R.zip([a, b, c], [d, e, f]) = [[a, d], [b, e], [c, f]]
  */
@@ -23,0 +24,0 @@ module.exports = _curry2(function zip(a, b) {

src/zipWith.js

@@ -26,2 +26,3 @@ var _curry3 = require('./internal/_curry3');
  *      //=> [f(1, 'a'), f(2, 'b'), f(3, 'c')]
+ * @symb R.zipWith(fn, [a, b, c], [d, e, f]) = [fn(a, d), fn(b, e), fn(c, f)]
  */
@@ -28,0 +29,0 @@ module.exports = _curry3(function zipWith(fn, a, b) {

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