ramda - npm Package Compare versions

Comparing version 0.14.0 to 0.15.0

dist/ramda.min.js

@@ -1,2 +0,2 @@
-//  Ramda v0.14.0
+//  Ramda v0.15.0
 //  https://github.com/ramda/ramda
@@ -6,3 +6,3 @@ //  (c) 2013-2015 Scott Sauyet, Michael Hurley, and David Chambers
 
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+var t={};return function(){var r=pu(arguments);return j(r,t)||(t[r]=n.apply(this,arguments)),t[r]}}),ku=gu(N,it,En),Au=function(){function n(n){for(var t,r=new Set,e=0,u=n.length,i=[],o=[];u>e;)t=n[e],0===t||null!=t&&"function"==typeof t.equals?du(t,i)||(i.push(t),o.push(t)):r.size!==r.add(t).size&&o.push(t),e+=1;return o}return"function"!=typeof Set?qt(Cr):h(n)}(),Nu=h(function(n){return wu(n.length,n)}),Cu=p(function(n,t){return Au(y(Je(du)(n),t))}),Mu=p(jr(Au,f)),Pu={F:Ht,T:Xt,__:n,add:$,addIndex:Ve,adjust:G,all:dr,allPass:yu,always:J,and:yr,any:mr,anyPass:mu,ap:_e,aperture:K,append:vr,apply:Q,arity:nn,assoc:tn,assocPath:xr,binary:wr,bind:rn,both:en,call:vu,chain:He,clone:br,commute:xu,commuteMap:Xe,comparator:un,complement:on,compose:jr,composeL:Or,composeP:Ir,concat:Sr,cond:cn,construct:Nu,constructN:wu,contains:bu,containsWith:fn,converge:ju,countBy:an,createMapEntry:sn,curry:Ye,curryN:Er,dec:ln,defaultTo:hn,difference:Ou,differenceWith:pn,dissoc:gn,dissocPath:kr,divide:dn,drop:Ze,dropRepeats:Iu,dropRepeatsWith:$e,dropWhile:Ar,either:yn,empty:Nr,eqProps:Ge,equals:Cr,evolve:mn,filter:Mr,filterIndexed:vn,find:Pr,findIndex:Tr,findLast:Rr,findLastIndex:Wr,flatten:qr,flip:Je,forEach:Lr,forEachIndexed:xn,fromPairs:wn,functions:Ur,functionsIn:Br,groupBy:Fr,gt:bn,gte:jn,has:On,hasIn:In,head:Dr,identical:Sn,identity:En,ifElse:zr,inc:kn,indexOf:Ke,init:Qe,insert:Vr,insertAll:An,intersection:Cu,intersectionWith:_r,intersperse:Hr,into:nu,invert:Xr,invertObj:Yr,invoke:tu,invoker:Zr,is:Nn,isArrayLike:Cn,isEmpty:Mn,isNil:Pn,isSet:ru,join:$r,keys:Tn,keysIn:Rn,last:Gr,lastIndexOf:eu,length:Wn,lens:qn,lensIndex:Jr,lensOn:Ln,lensProp:Kr,lift:Su,liftN:uu,lt:Un,lte:Bn,map:Qr,mapAccum:Fn,mapAccumRight:Dn,mapIndexed:zn,mapObj:ne,mapObjIndexed:te,match:re,mathMod:Vn,max:ee,maxBy:_n,mean:iu,median:ou,memoize:Eu,merge:ue,mergeAll:cu,min:ie,minBy:Hn,modulo:Xn,multiply:Yn,nAry:Zn,negate:$n,none:oe,not:Gn,nth:Jn,nthArg:Kn,nthChar:Qn,nthCharCode:nt,of:tt,omit:fu,once:rt,or:ce,partial:au,partialRight:su,partition:fe,path:et,pathEq:ae,pick:ut,pickAll:it,pickBy:ot,pipe:se,pipeL:le,pipeP:he,pluck:lu,prepend:ct,product:hu,project:ku,prop:ft,propEq:pe,propOr:at,props:st,range:lt,reduce:ge,reduceIndexed:ht,reduceRight:pt,reduceRightIndexed:gt,reduced:dt,reject:de,rejectIndexed:yt,remove:mt,repeat:ye,replace:vt,reverse:xt,scan:wt,slice:me,sort:bt,sortBy:jt,split:ve,strIndexOf:Ot,strLastIndexOf:It,substring:xe,substringFrom:we,substringTo:be,subtract:St,sum:je,tail:Oe,take:Ie,takeWhile:Se,tap:Et,test:kt,times:At,toLower:Ee,toPairs:Nt,toPairsIn:Ct,toString:pu,toUpper:ke,transduce:Ae,trim:Mt,type:Pt,unapply:Tt,unary:Rt,uncurryN:Ne,unfold:Wt,union:Mu,unionWith:Ce,uniq:Au,uniqWith:qt,unnest:Me,update:Lt,useWith:gu,values:Ut,valuesIn:Bt,where:Ft,whereEq:Pe,wrap:Te,xprod:Dt,zip:zt,zipObj:Vt,zipWith:_t};"object"==typeof exports?module.exports=Pu:"function"==typeof define&&define.amd?define(function(){return Pu}):this.R=Pu}).call(this);

package.json

@@ -27,3 +27,3 @@ {
   "description": "A practical functional library for JavaScript programmers.",
-  "version": "0.14.0",
+  "version": "0.15.0",
   "homepage": "https://www.github.com/ramda/ramda",
@@ -37,4 +37,12 @@ "license": "MIT",
   "scripts": {
-    "jshint": "grunt jshint",
-    "test": "grunt jshint && grunt jscs && grunt browserify:client && grunt mochaTest:unit"
+    "bench": "scripts/benchRunner",
+    "browserify": "node_modules/browserify/bin/cmd.js test/*.js --outfile lib/test/bundle.js",
+    "bookmarklet": "scripts/bookmarklet",
+    "build": "make && make dist/ramda.min.js",
+    "clean": "rimraf dist/*",
+    "jscs": "jscs scripts/bookmarklet scripts/build **/*.js **/**/*.js",
+    "jshint": "jshint scripts/bookmarklet scripts/build **/*.js **/**/*.js",
+    "pretest": "npm run jshint && npm run jscs && npm run clean && npm run build",
+    "test": "node scripts/testfiles | node_modules/.bin/mocha --reporter spec",
+    "posttest": "git checkout -- dist"
   },
@@ -45,2 +53,4 @@ "dependencies": {},
     "benchmark": "~1.0.0",
+    "browserify": "10.x.x",
+    "cli-table": "0.3.x",
     "commander": "2.5.x",
@@ -50,30 +60,11 @@ "dox": "latest",
     "escodegen": "1.4.x",
-    "gh-pages": "^0.2.0",
-    "grunt": "~0.4.5",
-    "grunt-benchmark": "https://github.com/buzzdecafe/grunt-benchmark/archive/09999a8c3fbfff04a1695846c1ccd0bd8a0ef5ab.tar.gz",
-    "grunt-browserify": "3.2.1",
-    "grunt-cli": "~0.1.13",
-    "grunt-contrib-clean": "^0.6.0",
-    "grunt-contrib-connect": "^0.8.0",
-    "grunt-contrib-copy": "^0.7.0",
-    "grunt-contrib-jshint": "~0.10.0",
-    "grunt-contrib-less": "^1.0.0",
-    "grunt-contrib-watch": "^0.6.1",
-    "grunt-docco": "latest",
-    "grunt-express": "^1.4.1",
-    "grunt-jscs": "1.5.x",
-    "grunt-jsdoc": "^0.6.1",
-    "grunt-mocha": "~0.4.11",
-    "grunt-mocha-test": "~0.11.0",
-    "grunt-open": "^0.2.3",
-    "grunt-saucelabs": "^8.3.1",
-    "handlebars": "^2.0.0",
-    "highlight.js": "^8.4.0",
+    "handlebars": "3.0.x",
     "js-yaml": "^3.2.5",
+    "jscs": "1.13.x",
+    "jshint": "2.7.x",
     "lodash": "latest",
-    "marked": "^0.3.2",
     "mocha": "2.x.x",
-    "orchestrate": "~0.3.4",
     "q": "^1.1.1",
     "ramda": "0.13.0",
+    "rimraf": "~2.3.2",
     "testem": "^0.6.18",
@@ -80,0 +71,0 @@ "uglify-js": "2.4.x",

README.md

@@ -96,3 +96,3 @@ Ramda
 ```html
-<script src="//cdnjs.cloudflare.com/ajax/libs/ramda/0.14.0/ramda.min.js"></script>
+<script src="//cdnjs.cloudflare.com/ajax/libs/ramda/0.15.0/ramda.min.js"></script>
 ```
@@ -103,4 +103,4 @@
 ```html
-<script src="//cdn.jsdelivr.net/ramda/0.14.0/ramda.min.js"></script>
-<script src="//cdn.jsdelivr.net/ramda/0.14/ramda.min.js"></script>
+<script src="//cdn.jsdelivr.net/ramda/0.15.0/ramda.min.js"></script>
+<script src="//cdn.jsdelivr.net/ramda/0.15/ramda.min.js"></script>
 <script src="//cdn.jsdelivr.net/ramda/latest/ramda.min.js"></script>
@@ -113,10 +113,11 @@ ```
 
-Or you can inject ramda into virtually any unsuspecting web site using this bookmarklet:
+Or you can inject ramda into virtually any unsuspecting website using [the bookmarklet](BOOKMARKLET.md).
 
-```javascript
-javascript:(function(){var el=document.createElement('div'),b=document.getElementsByTagName('body')[0];msg='';el.style.position='fixed';el.style.height='32px';el.style.width='220px';el.style.marginLeft='-110px';el.style.top='0';el.style.left='50%';el.style.padding='5px 10px';el.style.zIndex=1001;el.style.fontSize='12px';el.style.color='#222';el.style.backgroundColor='#f99';if(typeof ramda!='undefined'){msg='This page already using ramda v'+ramda.version;return showMsg()}function getScript(url,success){var script=document.createElement('script');script.src=url;var head=document.getElementsByTagName('head')[0],done=false;script.onload=script.onreadystatechange=function(){if(!done&&(!this.readyState||this.readyState=='loaded'||this.readyState=='complete')){done=true;success();script.onload=script.onreadystatechange=null;head.removeChild(script)}};head.appendChild(script)}getScript('http://cdn.jsdelivr.net/ramda/latest/ramda.min.js',function(){if(typeof ramda=='undefined'){msg='Sorry, but Ramda wasn\'t able to load'}else{msg='This page is now Ramda-fied with v'+ramda.version}return showMsg()});function showMsg(){el.innerHTML=msg;b.appendChild(el);window.setTimeout(function(){if(typeof jQuery=='undefined'){b.removeChild(el)}else{jQuery(el).fadeOut('slow',function(){jQuery(this).remove()})}},2500)}})();
-```
+### Build
 
-### Partial Builds
+* on Unix-based platforms, `npm run build` updates __dist/ramda.js__ and __dist/ramda.min.js__
+* on Windows, write the output of `scripts/build --complete` to a temporary file, then rename the temporary file __dist/ramda.js__.
 
+#### Partial Builds
+
 It is possible to build Ramda with a subset of the functionality to reduce its file size. Ramda's build system supports this with command line flags. For example if you're using `R.compose`, `R.reduce`, and `R.filter` you can create a partial build with:
@@ -123,0 +124,0 @@

src/__.js

@@ -25,2 +25,2 @@ /**
  */
-module.exports = {ramda: 'placeholder'};
+module.exports = {'@@functional/placeholder': true};

src/adjust.js

@@ -8,2 +8,3 @@ var _concat = require('./internal/_concat');
  * index replaced with the result of the function application.
+ * @see R.update
  *
@@ -10,0 +11,0 @@ * @func

src/aperture.js

@@ -22,9 +22,10 @@ var _curry2 = require('./internal/_curry2');
 module.exports = _curry2(function aperture(n, list) {
-  var idx = -1;
+  var idx = 0;
   var limit = list.length - (n - 1);
   var acc = new Array(limit >= 0 ? limit : 0);
-  while (++idx < limit) {
+  while (idx < limit) {
     acc[idx] = _slice(list, idx, idx + n);
+    idx += 1;
   }
   return acc;
 });

src/arity.js

@@ -17,2 +17,3 @@ var _curry2 = require('./internal/_curry2');
  *         guaranteed to be of arity `n`.
+ * @deprecated since v0.15.0
  * @example
@@ -32,16 +33,17 @@ *
 module.exports = _curry2(function(n, fn) {
+  // jshint unused:vars
   switch (n) {
     case 0: return function() {return fn.apply(this, arguments);};
-    case 1: return function(a0) {void a0; return fn.apply(this, arguments);};
-    case 2: return function(a0, a1) {void a1; return fn.apply(this, arguments);};
-    case 3: return function(a0, a1, a2) {void a2; return fn.apply(this, arguments);};
-    case 4: return function(a0, a1, a2, a3) {void a3; return fn.apply(this, arguments);};
-    case 5: return function(a0, a1, a2, a3, a4) {void a4; return fn.apply(this, arguments);};
-    case 6: return function(a0, a1, a2, a3, a4, a5) {void a5; return fn.apply(this, arguments);};
-    case 7: return function(a0, a1, a2, a3, a4, a5, a6) {void a6; return fn.apply(this, arguments);};
-    case 8: return function(a0, a1, a2, a3, a4, a5, a6, a7) {void a7; return fn.apply(this, arguments);};
-    case 9: return function(a0, a1, a2, a3, a4, a5, a6, a7, a8) {void a8; return fn.apply(this, arguments);};
-    case 10: return function(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9) {void a9; return fn.apply(this, arguments);};
+    case 1: return function(a0) {return fn.apply(this, arguments);};
+    case 2: return function(a0, a1) {return fn.apply(this, arguments);};
+    case 3: return function(a0, a1, a2) {return fn.apply(this, arguments);};
+    case 4: return function(a0, a1, a2, a3) {return fn.apply(this, arguments);};
+    case 5: return function(a0, a1, a2, a3, a4) {return fn.apply(this, arguments);};
+    case 6: return function(a0, a1, a2, a3, a4, a5) {return fn.apply(this, arguments);};
+    case 7: return function(a0, a1, a2, a3, a4, a5, a6) {return fn.apply(this, arguments);};
+    case 8: return function(a0, a1, a2, a3, a4, a5, a6, a7) {return fn.apply(this, arguments);};
+    case 9: return function(a0, a1, a2, a3, a4, a5, a6, a7, a8) {return fn.apply(this, arguments);};
+    case 10: return function(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9) {return fn.apply(this, arguments);};
     default: throw new Error('First argument to arity must be a non-negative integer no greater than ten');
   }
 });

src/chain.js

@@ -1,7 +0,6 @@
-var _checkForMethod = require('./internal/_checkForMethod');
+var _chain = require('./internal/_chain');
 var _curry2 = require('./internal/_curry2');
-var _map = require('./internal/_map');
-var unnest = require('./unnest');
+var _dispatchable = require('./internal/_dispatchable');
+var _xchain = require('./internal/_xchain');
 
-
 /**
@@ -27,4 +26,2 @@ * `chain` maps a function over a list and concatenates the results.
  */
-module.exports = _curry2(_checkForMethod('chain', function chain(f, list) {
-  return unnest(_map(f, list));
-}));
+module.exports = _curry2(_dispatchable('chain', _xchain, _chain));

src/composeL.js

@@ -31,8 +31,9 @@ var _composeL = require('./internal/_composeL');
 module.exports = function() {
-  var idx = arguments.length - 1;
-  var fn = arguments[idx];
-  while (--idx >= 0) {
+  var fn = arguments[arguments.length - 1];
+  var idx = arguments.length - 2;
+  while (idx >= 0) {
     fn = _composeL(arguments[idx], fn);
+    idx -= 1;
   }
   return fn;
 };

src/cond.js

@@ -18,5 +18,5 @@ /**
  *      var fn = R.cond(
- *        [R.eq(0),   R.always('water freezes at 0°C')],
- *        [R.eq(100), R.always('water boils at 100°C')],
- *        [R.T,       function(temp) { return 'nothing special happens at ' + temp + '°C'; }]
+ *        [R.equals(0),   R.always('water freezes at 0°C')],
+ *        [R.equals(100), R.always('water boils at 100°C')],
+ *        [R.T,           function(temp) { return 'nothing special happens at ' + temp + '°C'; }]
  *      );
@@ -30,9 +30,10 @@ *      fn(0); //=> 'water freezes at 0°C'
   return function() {
-    var idx = -1;
-    while (++idx < pairs.length) {
+    var idx = 0;
+    while (idx < pairs.length) {
       if (pairs[idx][0].apply(this, arguments)) {
         return pairs[idx][1].apply(this, arguments);
       }
+      idx += 1;
     }
   };
 };

src/construct.js

@@ -24,5 +24,5 @@ var _curry1 = require('./internal/_curry1');
  *      };
- *      var allConfigs = {
+ *      var allConfigs = [
  *        // ...
- *      };
+ *      ];
  *      R.map(R.construct(Widget), allConfigs); // a list of Widgets
@@ -29,0 +29,0 @@ */

src/constructN.js

@@ -28,5 +28,5 @@ var _curry2 = require('./internal/_curry2');
  *      };
- *      var allConfigs = {
+ *      var allConfigs = [
  *        // ...
- *      };
+ *      ];
  *      R.map(R.constructN(1, Widget), allConfigs); // a list of Widgets
@@ -33,0 +33,0 @@ */

src/contains.js

@@ -6,8 +6,5 @@ var _contains = require('./internal/_contains');
 /**
- * Returns `true` if the specified item is somewhere in the list, `false` otherwise.
- * Equivalent to `indexOf(a, list) >= 0`.
+ * Returns `true` if the specified value is equal, in `R.equals` terms,
+ * to at least one element of the given list; `false` otherwise.
  *
- * Has `Object.is` semantics: `NaN` is considered equal to `NaN`; `0` and `-0`
- * are not considered equal.
- *
  * @func
@@ -23,8 +20,6 @@ * @memberOf R
  *
- *      R.contains(3)([1, 2, 3]); //=> true
- *      R.contains(4)([1, 2, 3]); //=> false
- *      R.contains({})([{}, {}]); //=> false
- *      var obj = {};
- *      R.contains(obj)([{}, obj, {}]); //=> true
+ *      R.contains(3, [1, 2, 3]); //=> true
+ *      R.contains(4, [1, 2, 3]); //=> false
+ *      R.contains([42], [[42]]); //=> true
  */
 module.exports = _curry2(_contains);

src/countBy.js

@@ -28,9 +28,9 @@ var _curry2 = require('./internal/_curry2');
   var counts = {};
-  var len = list.length;
-  var idx = -1;
-  while (++idx < len) {
+  var idx = 0;
+  while (idx < list.length) {
     var key = fn(list[idx]);
     counts[key] = (_has(key, counts) ? counts[key] : 0) + 1;
+    idx += 1;
   }
   return counts;
 });

src/curryN.js

@@ -1,4 +0,3 @@
-var __ = require('./__');
 var _curry2 = require('./internal/_curry2');
-var _slice = require('./internal/_slice');
+var _curryN = require('./internal/_curryN');
 var arity = require('./arity');
@@ -51,27 +50,3 @@
 module.exports = _curry2(function curryN(length, fn) {
-  return arity(length, function() {
-    var n = arguments.length;
-    var shortfall = length - n;
-    var idx = n;
-    while (--idx >= 0) {
-      if (arguments[idx] === __) {
-        shortfall += 1;
-      }
-    }
-    if (shortfall <= 0) {
-      return fn.apply(this, arguments);
-    } else {
-      var initialArgs = _slice(arguments);
-      return curryN(shortfall, function() {
-        var currentArgs = _slice(arguments);
-        var combinedArgs = [];
-        var idx = -1;
-        while (++idx < n) {
-          var val = initialArgs[idx];
-          combinedArgs[idx] = (val === __ ? currentArgs.shift() : val);
-        }
-        return fn.apply(this, combinedArgs.concat(currentArgs));
-      });
-    }
-  });
+  return arity(length, _curryN(length, [], fn));
 });

src/difference.js

@@ -23,10 +23,10 @@ var _contains = require('./internal/_contains');
   var out = [];
-  var idx = -1;
-  var firstLen = first.length;
-  while (++idx < firstLen) {
+  var idx = 0;
+  while (idx < first.length) {
     if (!_contains(first[idx], second) && !_contains(first[idx], out)) {
       out[out.length] = first[idx];
     }
+    idx += 1;
   }
   return out;
 });

src/differenceWith.js

@@ -28,11 +28,11 @@ var _curry3 = require('./internal/_curry3');
   var out = [];
-  var idx = -1;
-  var firstLen = first.length;
+  var idx = 0;
   var containsPred = containsWith(pred);
-  while (++idx < firstLen) {
+  while (idx < first.length) {
     if (!containsPred(first[idx], second) && !containsPred(first[idx], out)) {
       out[out.length] = first[idx];
     }
+    idx += 1;
   }
   return out;
 });

src/drop.js

 var _curry2 = require('./internal/_curry2');
 var _dispatchable = require('./internal/_dispatchable');
-var _slice = require('./internal/_slice');
 var _xdrop = require('./internal/_xdrop');
+var slice = require('./slice');
 
@@ -17,5 +17,5 @@
  * @sig Number -> [a] -> [a]
- * @param {Number} n The number of elements of `list` to skip.
- * @param {Array} list The array to consider.
- * @return {Array} The last `n` elements of `list`.
+ * @param {Number} n The number of elements of `xs` to skip.
+ * @param {Array} xs The collection to consider.
+ * @return {Array}
  * @example
@@ -25,4 +25,4 @@ *
  */
-module.exports = _curry2(_dispatchable('drop', _xdrop, function drop(n, list) {
-  return n <= 0 ? list : _slice(list, n);
+module.exports = _curry2(_dispatchable('drop', _xdrop, function drop(n, xs) {
+  return slice(Math.max(0, n), Infinity, xs);
 }));

src/dropRepeats.js

 var _curry1 = require('./internal/_curry1');
 var _dispatchable = require('./internal/_dispatchable');
-var _eq = require('./internal/_eq');
 var _xdropRepeatsWith = require('./internal/_xdropRepeatsWith');
 var dropRepeatsWith = require('./dropRepeatsWith');
+var equals = require('./equals');
 
@@ -10,2 +10,3 @@
  * Returns a new list without any consecutively repeating elements.
+ * `R.equals` is used to determine equality.
  *
@@ -25,2 +26,2 @@ * Acts as a transducer if a transformer is given in list position.
  */
-module.exports = _curry1(_dispatchable('dropRepeats', _xdropRepeatsWith(_eq), dropRepeatsWith(_eq)));
+module.exports = _curry1(_dispatchable('dropRepeats', _xdropRepeatsWith(equals), dropRepeatsWith(equals)));

src/dropRepeatsWith.js

@@ -30,10 +30,10 @@ var _curry2 = require('./internal/_curry2');
   var result = [];
-  var idx = 0;
-  var len = list.length;
-  if (len !== 0) {
+  var idx = 1;
+  if (list.length > 0) {
     result[0] = list[0];
-    while (++idx < len) {
+    while (idx < list.length) {
       if (!pred(last(result), list[idx])) {
         result[result.length] = list[idx];
       }
+      idx += 1;
     }
@@ -40,0 +40,0 @@ }

src/dropWhile.js

@@ -28,8 +28,10 @@ var _curry2 = require('./internal/_curry2');
  *
- *      R.dropWhile(lteTwo, [1, 2, 3, 4]); //=> [3, 4]
+ *      R.dropWhile(lteTwo, [1, 2, 3, 4, 3, 2, 1]); //=> [3, 4, 3, 2, 1]
  */
 module.exports = _curry2(_dispatchable('dropWhile', _xdropWhile, function dropWhile(pred, list) {
-  var idx = -1, len = list.length;
-  while (++idx < len && pred(list[idx])) {}
+  var idx = 0;
+  while (idx < list.length && pred(list[idx])) {
+    idx += 1;
+  }
   return _slice(list, idx);
 }));

src/empty.js

@@ -6,4 +6,5 @@ var _curry1 = require('./internal/_curry1');
 /**
- * `empty` wraps any object in an array. This implementation is compatible with the
- * Fantasy-land Monoid spec, and will work with types that implement that spec.
+ * `empty` returns an empty list for any argument, except when the argument satisfies the
+ * Fantasy-land Monoid spec. In that case, this function will return the result of invoking
+ * `empty` on that Monoid.
  *
@@ -10,0 +11,0 @@ * @func

src/eqProps.js

 var _curry3 = require('./internal/_curry3');
-var _eq = require('./internal/_eq');
+var equals = require('./equals');
 
 
 /**
- * Reports whether two objects have the same value for the specified property.  Useful as a curried predicate.
+ * Reports whether two objects have the same value, in `R.equals` terms,
+ * for the specified property. Useful as a curried predicate.
  *
- * Has `Object.is` semantics: `NaN` is considered equal to `NaN`; `0` and `-0`
- * are not considered equal.
- *
  * @func
@@ -28,3 +26,3 @@ * @memberOf R
 module.exports = _curry3(function eqProps(prop, obj1, obj2) {
-  return _eq(obj1[prop], obj2[prop]);
+  return equals(obj1[prop], obj2[prop]);
 });

src/evolve.js

 var _curry2 = require('./internal/_curry2');
-var _extend = require('./internal/_extend');
-var mapObjIndexed = require('./mapObjIndexed');
 
 
 /**
- * Creates a new object by evolving a shallow copy of `object`, according to the
- * `transformation` functions.  All non-primitive properties are copied by reference.
+ * Creates a new object by recursively evolving a shallow copy of `object`, according to the
+ * `transformation` functions. All non-primitive properties are copied by reference.
  *
+ * A `tranformation` function will not be invoked if its corresponding key does not exist in
+ * the evolved object.
+ *
  * @func
@@ -20,8 +21,20 @@ * @memberOf R
  *
- *      R.evolve({ elapsed: R.add(1), remaining: R.add(-1) }, { name: 'Tomato', elapsed: 100, remaining: 1400 }); //=> { name: 'Tomato', elapsed: 101, remaining: 1399 }
+ *      var tomato  = {firstName: '  Tomato ', elapsed: 100, remaining: 1400};
+ *      var transformations = {
+ *        firstName: R.trim,
+ *        lastName: R.trim, // Will not get invoked.
+ *        data: {elapsed: R.add(1), remaining: R.add(-1)}
+ *      };
+ *      R.evolve(transformations, tomato); //=> {firstName: 'Tomato', data: {elapsed: 101, remaining: 1399}}
  */
 module.exports = _curry2(function evolve(transformations, object) {
-  return _extend(_extend({}, object), mapObjIndexed(function(fn, key) {
-    return fn(object[key]);
-  }, transformations));
+  var transformation, key, type, result = {};
+  for (key in object) {
+    transformation = transformations[key];
+    type = typeof transformation;
+    result[key] = type === 'function' ? transformation(object[key])
+                : type === 'object'   ? evolve(transformations[key], object[key])
+                                      : object[key];
+  }
+  return result;
 });

src/filterIndexed.js

@@ -16,2 +16,4 @@ var _curry2 = require('./internal/_curry2');
  * @return {Array} The new filtered array.
+ * @deprecated since v0.15.0
+ * @see R.addIndex
  * @example
@@ -18,0 +20,0 @@ *

src/find.js

@@ -28,9 +28,9 @@ var _curry2 = require('./internal/_curry2');
 module.exports = _curry2(_dispatchable('find', _xfind, function find(fn, list) {
-  var idx = -1;
-  var len = list.length;
-  while (++idx < len) {
+  var idx = 0;
+  while (idx < list.length) {
     if (fn(list[idx])) {
       return list[idx];
     }
+    idx += 1;
   }
 }));

src/findIndex.js

@@ -28,10 +28,10 @@ var _curry2 = require('./internal/_curry2');
 module.exports = _curry2(_dispatchable('findIndex', _xfindIndex, function findIndex(fn, list) {
-  var idx = -1;
-  var len = list.length;
-  while (++idx < len) {
+  var idx = 0;
+  while (idx < list.length) {
     if (fn(list[idx])) {
       return idx;
     }
+    idx += 1;
   }
   return -1;
 }));

src/findLast.js

@@ -28,8 +28,9 @@ var _curry2 = require('./internal/_curry2');
 module.exports = _curry2(_dispatchable('findLast', _xfindLast, function findLast(fn, list) {
-  var idx = list.length;
-  while (--idx >= 0) {
+  var idx = list.length - 1;
+  while (idx >= 0) {
     if (fn(list[idx])) {
       return list[idx];
     }
+    idx -= 1;
   }
 }));

src/findLastIndex.js

@@ -28,9 +28,10 @@ var _curry2 = require('./internal/_curry2');
 module.exports = _curry2(_dispatchable('findLastIndex', _xfindLastIndex, function findLastIndex(fn, list) {
-  var idx = list.length;
-  while (--idx >= 0) {
+  var idx = list.length - 1;
+  while (idx >= 0) {
     if (fn(list[idx])) {
       return idx;
     }
+    idx -= 1;
   }
   return -1;
 }));

src/forEach.js

 var _curry2 = require('./internal/_curry2');
 var _forEach = require('./internal/_forEach');
+var _hasMethod = require('./internal/_hasMethod');
 
@@ -33,2 +34,4 @@
  */
-module.exports = _curry2(_forEach);
+module.exports = _curry2(function forEach(fn, list) {
+  return _hasMethod('forEach', list) ? list.forEach(fn) : _forEach(fn, list);
+});

src/forEachIndexed.js

@@ -25,2 +25,4 @@ var _curry2 = require('./internal/_curry2');
  * @return {Array} The original list.
+ * @deprecated since v0.15.0
+ * @see R.addIndex
  * @example
@@ -34,5 +36,6 @@ *
 module.exports = _curry2(function forEachIndexed(fn, list) {
-  var idx = -1, len = list.length;
-  while (++idx < len) {
+  var idx = 0;
+  while (idx < list.length) {
     fn(list[idx], idx, list);
+    idx += 1;
   }
@@ -39,0 +42,0 @@ // i can't bear not to return *something*

src/fromPairs.js

@@ -19,9 +19,10 @@ var _curry1 = require('./internal/_curry1');
 module.exports = _curry1(function fromPairs(pairs) {
-  var idx = -1, len = pairs.length, out = {};
-  while (++idx < len) {
+  var idx = 0, out = {};
+  while (idx < pairs.length) {
     if (_isArray(pairs[idx]) && pairs[idx].length) {
       out[pairs[idx][0]] = pairs[idx][1];
     }
+    idx += 1;
   }
   return out;
 });

src/indexOf.js

 var _curry2 = require('./internal/_curry2');
+var _hasMethod = require('./internal/_hasMethod');
 var _indexOf = require('./internal/_indexOf');
@@ -7,7 +8,5 @@
  * Returns the position of the first occurrence of an item in an array,
- * or -1 if the item is not included in the array.
+ * or -1 if the item is not included in the array. `R.equals` is used to
+ * determine equality.
  *
- * Has `Object.is` semantics: `NaN` is considered equal to `NaN`; `0` and `-0`
- * are not considered equal.
- *
  * @func
@@ -18,3 +17,3 @@ * @memberOf R
  * @param {*} target The item to find.
- * @param {Array} list The array to search in.
+ * @param {Array} xs The array to search in.
  * @return {Number} the index of the target, or -1 if the target is not found.
@@ -27,4 +26,4 @@ *
  */
-module.exports = _curry2(function indexOf(target, list) {
-  return _indexOf(list, target);
+module.exports = _curry2(function indexOf(target, xs) {
+  return _hasMethod('indexOf', xs) ? xs.indexOf(target) : _indexOf(xs, target);
 });

src/internal/_all.js

 module.exports = function _all(fn, list) {
-  var idx = -1;
-  while (++idx < list.length) {
+  var idx = 0;
+  while (idx < list.length) {
     if (!fn(list[idx])) {
       return false;
     }
+    idx += 1;
   }
   return true;
 };

src/internal/_any.js

 module.exports = function _any(fn, list) {
-  var idx = -1;
-  while (++idx < list.length) {
+  var idx = 0;
+  while (idx < list.length) {
     if (fn(list[idx])) {
       return true;
     }
+    idx += 1;
   }
   return false;
 };

src/internal/_baseCopy.js

@@ -16,8 +16,8 @@ var _cloneRegExp = require('./_cloneRegExp');
   var copy = function copy(copiedValue) {
-    var len = refFrom.length;
-    var idx = -1;
-    while (++idx < len) {
+    var idx = 0;
+    while (idx < refFrom.length) {
       if (value === refFrom[idx]) {
         return refTo[idx];
       }
+      idx += 1;
     }
@@ -24,0 +24,0 @@ refFrom[idx + 1] = value;

src/internal/_checkForMethod.js

@@ -17,11 +17,10 @@ var _isArray = require('./_isArray');
   return function() {
-    var length = arguments.length;
-    if (length === 0) {
+    if (arguments.length === 0) {
       return fn();
     }
-    var obj = arguments[length - 1];
+    var obj = arguments[arguments.length - 1];
     return (_isArray(obj) || typeof obj[methodname] !== 'function') ?
       fn.apply(this, arguments) :
-      obj[methodname].apply(obj, _slice(arguments, 0, length - 1));
+      obj[methodname].apply(obj, _slice(arguments, 0, arguments.length - 1));
   };
 };

src/internal/_concat.js

@@ -16,15 +16,15 @@ /**
   var idx;
-  var len1 = set1.length;
-  var len2 = set2.length;
   var result = [];
 
-  idx = -1;
-  while (++idx < len1) {
+  idx = 0;
+  while (idx < set1.length) {
     result[result.length] = set1[idx];
+    idx += 1;
   }
-  idx = -1;
-  while (++idx < len2) {
+  idx = 0;
+  while (idx < set2.length) {
     result[result.length] = set2[idx];
+    idx += 1;
   }
   return result;
 };

src/internal/_containsWith.js

 module.exports = function _containsWith(pred, x, list) {
-  var idx = -1, len = list.length;
-  while (++idx < len) {
+  var idx = 0;
+  while (idx < list.length) {
     if (pred(x, list[idx])) {
       return true;
     }
+    idx += 1;
   }
   return false;
 };

src/internal/_createComposer.js

@@ -10,7 +10,8 @@ var arity = require('../arity');
   return function() {
-    var idx = arguments.length - 1;
-    var fn = arguments[idx];
+    var fn = arguments[arguments.length - 1];
     var length = fn.length;
-    while (--idx >= 0) {
+    var idx = arguments.length - 2;
+    while (idx >= 0) {
       fn = composeFunction(arguments[idx], fn);
+      idx -= 1;
     }
@@ -17,0 +18,0 @@ return arity(length, fn);

src/internal/_createMaxMin.js

@@ -17,4 +17,4 @@ var _curry1 = require('./_curry1');
   return _curry1(function(list) {
-    var idx = -1, winner = initialVal, computed;
-    while (++idx < list.length) {
+    var idx = 0, winner = initialVal, computed;
+    while (idx < list.length) {
       computed = +list[idx];
@@ -24,2 +24,3 @@ if (comparator(computed, winner)) {
       }
+      idx += 1;
     }
@@ -26,0 +27,0 @@ return winner;

src/internal/_createMaxMinBy.js

@@ -16,7 +16,7 @@ /**
     }
-    var idx = 0;
+    var idx = 1;
     var winner = list[idx];
     var computedWinner = valueComputer(winner);
     var computedCurrent;
-    while (++idx < list.length) {
+    while (idx < list.length) {
       computedCurrent = valueComputer(list[idx]);
@@ -27,2 +27,3 @@ if (comparator(computedCurrent, computedWinner)) {
       }
+      idx += 1;
     }
@@ -29,0 +30,0 @@ return winner;

src/internal/_curry1.js

@@ -1,4 +0,1 @@
-var __ = require('../__');
-
-
 /**
@@ -16,3 +13,3 @@ * Optimized internal two-arity curry function.
       return f1;
-    } else if (a === __) {
+    } else if (a != null && a['@@functional/placeholder'] === true) {
       return f1;
@@ -19,0 +16,0 @@ } else {

src/internal/_curry2.js

@@ -1,2 +0,1 @@
-var __ = require('../__');
 var _curry1 = require('./_curry1');
@@ -18,11 +17,12 @@
       return f2;
-    } else if (n === 1 && a === __) {
+    } else if (n === 1 && a != null && a['@@functional/placeholder'] === true) {
       return f2;
     } else if (n === 1) {
       return _curry1(function(b) { return fn(a, b); });
-    } else if (n === 2 && a === __ && b === __) {
+    } else if (n === 2 && a != null && a['@@functional/placeholder'] === true &&
+                          b != null && b['@@functional/placeholder'] === true) {
       return f2;
-    } else if (n === 2 && a === __) {
+    } else if (n === 2 && a != null && a['@@functional/placeholder'] === true) {
       return _curry1(function(a) { return fn(a, b); });
-    } else if (n === 2 && b === __) {
+    } else if (n === 2 && b != null && b['@@functional/placeholder'] === true) {
       return _curry1(function(b) { return fn(a, b); });
@@ -29,0 +29,0 @@ } else {

src/internal/_curry3.js

@@ -1,2 +0,1 @@
-var __ = require('../__');
 var _curry1 = require('./_curry1');
@@ -19,27 +18,33 @@ var _curry2 = require('./_curry2');
       return f3;
-    } else if (n === 1 && a === __) {
+    } else if (n === 1 && a != null && a['@@functional/placeholder'] === true) {
       return f3;
     } else if (n === 1) {
       return _curry2(function(b, c) { return fn(a, b, c); });
-    } else if (n === 2 && a === __ && b === __) {
+    } else if (n === 2 && a != null && a['@@functional/placeholder'] === true &&
+                          b != null && b['@@functional/placeholder'] === true) {
       return f3;
-    } else if (n === 2 && a === __) {
+    } else if (n === 2 && a != null && a['@@functional/placeholder'] === true) {
       return _curry2(function(a, c) { return fn(a, b, c); });
-    } else if (n === 2 && b === __) {
+    } else if (n === 2 && b != null && b['@@functional/placeholder'] === true) {
       return _curry2(function(b, c) { return fn(a, b, c); });
     } else if (n === 2) {
       return _curry1(function(c) { return fn(a, b, c); });
-    } else if (n === 3 && a === __ && b === __ && c === __) {
+    } else if (n === 3 && a != null && a['@@functional/placeholder'] === true &&
+                          b != null && b['@@functional/placeholder'] === true &&
+                          c != null && c['@@functional/placeholder'] === true) {
       return f3;
-    } else if (n === 3 && a === __ && b === __) {
+    } else if (n === 3 && a != null && a['@@functional/placeholder'] === true &&
+                          b != null && b['@@functional/placeholder'] === true) {
       return _curry2(function(a, b) { return fn(a, b, c); });
-    } else if (n === 3 && a === __ && c === __) {
+    } else if (n === 3 && a != null && a['@@functional/placeholder'] === true &&
+                          c != null && c['@@functional/placeholder'] === true) {
       return _curry2(function(a, c) { return fn(a, b, c); });
-    } else if (n === 3 && b === __ && c === __) {
+    } else if (n === 3 && b != null && b['@@functional/placeholder'] === true &&
+                          c != null && c['@@functional/placeholder'] === true) {
       return _curry2(function(b, c) { return fn(a, b, c); });
-    } else if (n === 3 && a === __) {
+    } else if (n === 3 && a != null && a['@@functional/placeholder'] === true) {
       return _curry1(function(a) { return fn(a, b, c); });
-    } else if (n === 3 && b === __) {
+    } else if (n === 3 && b != null && b['@@functional/placeholder'] === true) {
       return _curry1(function(b) { return fn(a, b, c); });
-    } else if (n === 3 && c === __) {
+    } else if (n === 3 && c != null && c['@@functional/placeholder'] === true) {
       return _curry1(function(c) { return fn(a, b, c); });
@@ -46,0 +51,0 @@ } else {

src/internal/_dispatchable.js

@@ -22,9 +22,8 @@ var _isArray = require('./_isArray');
   return function() {
-    var length = arguments.length;
-    if (length === 0) {
+    if (arguments.length === 0) {
       return fn();
     }
-    var obj = arguments[length - 1];
+    var obj = arguments[arguments.length - 1];
     if (!_isArray(obj)) {
-      var args = _slice(arguments, 0, length - 1);
+      var args = _slice(arguments, 0, arguments.length - 1);
       if (typeof obj[methodname] === 'function') {
@@ -31,0 +30,0 @@ return obj[methodname].apply(obj, args);

src/internal/_extend.js

@@ -21,7 +21,8 @@ var keys = require('../keys');
   var props = keys(other);
-  var idx = -1, length = props.length;
-  while (++idx < length) {
+  var idx = 0;
+  while (idx < props.length) {
     destination[props[idx]] = other[props[idx]];
+    idx += 1;
   }
   return destination;
 };

src/internal/_filter.js

 module.exports = function _filter(fn, list) {
-  var idx = -1, len = list.length, result = [];
-  while (++idx < len) {
+  var idx = 0, result = [];
+  while (idx < list.length) {
     if (fn(list[idx])) {
       result[result.length] = list[idx];
     }
+    idx += 1;
   }
   return result;
 };

src/internal/_filterIndexed.js

 module.exports = function _filterIndexed(fn, list) {
-  var idx = -1, len = list.length, result = [];
-  while (++idx < len) {
+  var idx = 0, result = [];
+  while (idx < list.length) {
     if (fn(list[idx], idx, list)) {
       result[result.length] = list[idx];
     }
+    idx += 1;
   }
   return result;
 };

src/internal/_forEach.js

 module.exports = function _forEach(fn, list) {
-  var idx = -1, len = list.length;
-  while (++idx < len) {
+  var idx = 0;
+  while (idx < list.length) {
     fn(list[idx]);
+    idx += 1;
   }
@@ -6,0 +7,0 @@ // i can't bear not to return *something*

src/internal/_indexOf.js

@@ -1,16 +0,16 @@
-var _eq = require('./_eq');
+var equals = require('../equals');
 
 
 module.exports = function _indexOf(list, item, from) {
-  var idx = 0, len = list.length;
-  if (typeof from == 'number') {
-    idx = from < 0 ? Math.max(0, len + from) : from;
+  var idx = 0;
+  if (typeof from === 'number') {
+    idx = from < 0 ? Math.max(0, list.length + from) : from;
   }
-  while (idx < len) {
-    if (_eq(list[idx], item)) {
+  while (idx < list.length) {
+    if (equals(list[idx], item)) {
       return idx;
     }
-    ++idx;
+    idx += 1;
   }
   return -1;
 };

src/internal/_lastIndexOf.js

@@ -1,15 +0,18 @@
-var _eq = require('./_eq');
+var equals = require('../equals');
 
 
 module.exports = function _lastIndexOf(list, item, from) {
-  var idx = list.length;
-  if (typeof from == 'number') {
-    idx = from < 0 ? idx + from + 1 : Math.min(idx, from + 1);
+  var idx;
+  if (typeof from === 'number') {
+    idx = from < 0 ? list.length + from : Math.min(list.length - 1, from);
+  } else {
+    idx = list.length - 1;
   }
-  while (--idx >= 0) {
-    if (_eq(list[idx], item)) {
+  while (idx >= 0) {
+    if (equals(list[idx], item)) {
       return idx;
     }
+    idx -= 1;
   }
   return -1;
 };

src/internal/_makeFlat.js

@@ -12,10 +12,10 @@ var isArrayLike = require('../isArrayLike');
   return function flatt(list) {
-    var value, result = [], idx = -1, j, ilen = list.length, jlen;
-    while (++idx < ilen) {
+    var value, result = [], idx = 0, j;
+    while (idx < list.length) {
       if (isArrayLike(list[idx])) {
         value = recursive ? flatt(list[idx]) : list[idx];
-        j = -1;
-        jlen = value.length;
-        while (++j < jlen) {
+        j = 0;
+        while (j < value.length) {
           result[result.length] = value[j];
+          j += 1;
         }
@@ -25,2 +25,3 @@ } else {
       }
+      idx += 1;
     }
@@ -27,0 +28,0 @@ return result;

src/internal/_map.js

 module.exports = function _map(fn, list) {
-  var idx = -1, len = list.length, result = [];
-  while (++idx < len) {
+  var idx = 0, result = [];
+  while (idx < list.length) {
     result[idx] = fn(list[idx]);
+    idx += 1;
   }
   return result;
 };

src/internal/_path.js

@@ -21,3 +21,3 @@ /**
     var val = obj;
-    for (var idx = 0, len = paths.length; idx < len && val != null; idx += 1) {
+    for (var idx = 0; idx < paths.length && val != null; idx += 1) {
       val = val[paths[idx]];
@@ -24,0 +24,0 @@ }

src/internal/_reduce.js

@@ -8,4 +8,4 @@ var _xwrap = require('./_xwrap');
   function _arrayReduce(xf, acc, list) {
-    var idx = -1, len = list.length;
-    while (++idx < len) {
+    var idx = 0;
+    while (idx < list.length) {
       acc = xf['@@transducer/step'](acc, list[idx]);
@@ -16,2 +16,3 @@ if (acc && acc['@@transducer/reduced']) {
       }
+      idx += 1;
     }
@@ -18,0 +19,0 @@ return xf['@@transducer/result'](acc);

src/internal/_reduced.js

@@ -1,2 +0,2 @@
-module.exports = function(x) {
+module.exports = function _reduced(x) {
   return x && x['@@transducer/reduced'] ? x :
@@ -3,0 +3,0 @@ {

src/internal/_slice.js

@@ -24,6 +24,7 @@ /**
       var list = [];
-      var idx = -1;
+      var idx = 0;
       var len = Math.max(0, Math.min(args.length, to) - from);
-      while (++idx < len) {
+      while (idx < len) {
         list[idx] = args[from + idx];
+        idx += 1;
       }
@@ -30,0 +31,0 @@ return list;

src/intersectionWith.js

@@ -44,9 +44,10 @@ var _containsWith = require('./internal/_containsWith');
 module.exports = _curry3(function intersectionWith(pred, list1, list2) {
-  var results = [], idx = -1;
-  while (++idx < list1.length) {
+  var results = [], idx = 0;
+  while (idx < list1.length) {
     if (_containsWith(pred, list1[idx], list2)) {
       results[results.length] = list1[idx];
     }
+    idx += 1;
   }
   return uniqWith(pred, results);
 });

src/intersperse.js

@@ -21,6 +21,5 @@ var _checkForMethod = require('./internal/_checkForMethod');
   var out = [];
-  var idx = -1;
-  var length = list.length;
-  while (++idx < length) {
-    if (idx === length - 1) {
+  var idx = 0;
+  while (idx < list.length) {
+    if (idx === list.length - 1) {
       out.push(list[idx]);
@@ -30,4 +29,5 @@ } else {
     }
+    idx += 1;
   }
   return out;
 }));

src/invert.js

@@ -30,7 +30,6 @@ var _curry1 = require('./internal/_curry1');
   var props = keys(obj);
-  var len = props.length;
-  var idx = -1;
+  var idx = 0;
   var out = {};
 
-  while (++idx < len) {
+  while (idx < props.length) {
     var key = props[idx];
@@ -40,4 +39,5 @@ var val = obj[key];
     list[list.length] = key;
+    idx += 1;
   }
   return out;
 });

src/invertObj.js

@@ -31,11 +31,11 @@ var _curry1 = require('./internal/_curry1');
   var props = keys(obj);
-  var len = props.length;
-  var idx = -1;
+  var idx = 0;
   var out = {};
 
-  while (++idx < len) {
+  while (idx < props.length) {
     var key = props[idx];
     out[obj[key]] = key;
+    idx += 1;
   }
   return out;
 });

src/invoke.js

@@ -15,2 +15,3 @@ var curry = require('./curry');
  * @return {*}
+ * @deprecated since v0.15.0
  * @example
@@ -17,0 +18,0 @@ *

src/invoker.js

@@ -0,3 +1,3 @@
+var _curry2 = require('./internal/_curry2');
 var _slice = require('./internal/_slice');
-var curry = require('./curry');
 var curryN = require('./curryN');
@@ -10,3 +10,3 @@
  *
- * The returned function is curried and accepts `len + 1` parameters where
+ * The returned function is curried and accepts `arity + 1` parameters where
  * the final parameter is the target object.
@@ -17,4 +17,4 @@ *
  * @category Function
- * @sig (Number, String) -> (a... -> c -> b)
- * @param {Number} len Number of arguments the returned function should take
+ * @sig Number -> String -> (a -> b -> ... -> n -> Object -> *)
+ * @param {Number} arity Number of arguments the returned function should take
  *        before the target object.
@@ -27,13 +27,10 @@ * @param {Function} method Name of the method to call.
  *      sliceFrom(6, 'abcdefghijklm'); //=> 'ghijklm'
- *      var sliceFrom6 = R.invoker(2, 'slice', 6);
+ *      var sliceFrom6 = R.invoker(2, 'slice')(6);
  *      sliceFrom6(8, 'abcdefghijklm'); //=> 'gh'
  */
-module.exports = curry(function invoker(arity, method) {
-  var initialArgs = _slice(arguments, 2);
-  var len = arity - initialArgs.length;
-  return curryN(len + 1, function() {
-    var target = arguments[len];
-    var args = initialArgs.concat(_slice(arguments, 0, len));
-    return target[method].apply(target, args);
+module.exports = _curry2(function invoker(arity, method) {
+  return curryN(arity + 1, function() {
+    var target = arguments[arity];
+    return target[method].apply(target, _slice(arguments, 0, arity));
   });
 });

src/isSet.js

@@ -6,7 +6,5 @@ var _curry1 = require('./internal/_curry1');
 /**
- * Returns `true` if all elements are unique, otherwise `false`.
+ * Returns `true` if all elements are unique, in `R.equals` terms,
+ * otherwise `false`.
  *
- * Has `Object.is` semantics: `NaN` is considered equal to `NaN`; `0` and `-0`
- * are not considered equal.
- *
  * @func
@@ -22,13 +20,13 @@ * @memberOf R
  *      R.isSet([1, 1]);   //=> false
- *      R.isSet([{}, {}]); //=> true
+ *      R.isSet([[42], [42]]); //=> false
  */
 module.exports = _curry1(function isSet(list) {
-  var len = list.length;
-  var idx = -1;
-  while (++idx < len) {
+  var idx = 0;
+  while (idx < list.length) {
     if (_indexOf(list, list[idx], idx + 1) >= 0) {
       return false;
     }
+    idx += 1;
   }
   return true;
 });

src/keys.js

@@ -1,2 +0,1 @@
-var _contains = require('./internal/_contains');
 var _curry1 = require('./internal/_curry1');
@@ -28,26 +27,39 @@ var _has = require('./internal/_has');
 
-  return _curry1(function keys(obj) {
-    if (Object(obj) !== obj) {
-      return [];
+  var contains = function contains(list, item) {
+    var idx = 0;
+    while (idx < list.length) {
+      if (list[idx] === item) {
+        return true;
+      }
+      idx += 1;
     }
-    if (Object.keys) {
-      return Object.keys(obj);
-    }
-    var prop, ks = [], nIdx;
-    for (prop in obj) {
-      if (_has(prop, obj)) {
-        ks[ks.length] = prop;
+    return false;
+  };
+
+  return typeof Object.keys === 'function' ?
+    _curry1(function keys(obj) {
+      return Object(obj) !== obj ? [] : Object.keys(obj);
+    }) :
+    _curry1(function keys(obj) {
+      if (Object(obj) !== obj) {
+        return [];
       }
-    }
-    if (hasEnumBug) {
-      nIdx = nonEnumerableProps.length;
-      while (--nIdx >= 0) {
-        prop = nonEnumerableProps[nIdx];
-        if (_has(prop, obj) && !_contains(prop, ks)) {
+      var prop, ks = [], nIdx;
+      for (prop in obj) {
+        if (_has(prop, obj)) {
           ks[ks.length] = prop;
         }
       }
-    }
-    return ks;
-  });
+      if (hasEnumBug) {
+        nIdx = nonEnumerableProps.length - 1;
+        while (nIdx >= 0) {
+          prop = nonEnumerableProps[nIdx];
+          if (_has(prop, obj) && !contains(ks, prop)) {
+            ks[ks.length] = prop;
+          }
+          nIdx -= 1;
+        }
+      }
+      return ks;
+    });
 }());

src/lastIndexOf.js

 var _curry2 = require('./internal/_curry2');
+var _hasMethod = require('./internal/_hasMethod');
 var _lastIndexOf = require('./internal/_lastIndexOf');
@@ -8,6 +9,4 @@
  * an array, or -1 if the item is not included in the array.
+ * `R.equals` is used to determine equality.
  *
- * Has `Object.is` semantics: `NaN` is considered equal to `NaN`; `0` and `-0`
- * are not considered equal.
- *
  * @func
@@ -18,3 +17,3 @@ * @memberOf R
  * @param {*} target The item to find.
- * @param {Array} list The array to search in.
+ * @param {Array} xs The array to search in.
  * @return {Number} the index of the target, or -1 if the target is not found.
@@ -27,4 +26,4 @@ *
  */
-module.exports = _curry2(function lastIndexOf(target, list) {
-  return _lastIndexOf(list, target);
+module.exports = _curry2(function lastIndexOf(target, xs) {
+  return _hasMethod('lastIndexOf', xs) ? xs.lastIndexOf(target) : _lastIndexOf(xs, target);
 });

src/mapAccum.js

@@ -30,8 +30,9 @@ var _curry3 = require('./internal/_curry3');
 module.exports = _curry3(function mapAccum(fn, acc, list) {
-  var idx = -1, len = list.length, result = [], tuple = [acc];
-  while (++idx < len) {
+  var idx = 0, result = [], tuple = [acc];
+  while (idx < list.length) {
     tuple = fn(tuple[0], list[idx]);
     result[idx] = tuple[1];
+    idx += 1;
   }
   return [tuple[0], result];
 });

src/mapAccumRight.js

@@ -33,8 +33,9 @@ var _curry3 = require('./internal/_curry3');
 module.exports = _curry3(function mapAccumRight(fn, acc, list) {
-  var idx = list.length, result = [], tuple = [acc];
-  while (--idx >= 0) {
+  var idx = list.length - 1, result = [], tuple = [acc];
+  while (idx >= 0) {
     tuple = fn(tuple[0], list[idx]);
     result[idx] = tuple[1];
+    idx -= 1;
   }
   return [tuple[0], result];
 });

src/mapIndexed.js

@@ -19,2 +19,4 @@ var _curry2 = require('./internal/_curry2');
  * @return {Array} The new list.
+ * @deprecated since v0.15.0
+ * @see R.addIndex
  * @example
@@ -32,7 +34,8 @@ *
 module.exports = _curry2(function mapIndexed(fn, list) {
-  var idx = -1, len = list.length, result = [];
-  while (++idx < len) {
+  var idx = 0, result = [];
+  while (idx < list.length) {
     result[idx] = fn(list[idx], idx, list);
+    idx += 1;
   }
   return result;
 });

src/median.js

@@ -22,8 +22,7 @@ var _curry1 = require('./internal/_curry1');
 module.exports = _curry1(function median(list) {
-  var len = list.length;
-  if (len === 0) {
+  if (list.length === 0) {
     return NaN;
   }
-  var width = 2 - len % 2;
-  var idx = (len - width) / 2;
+  var width = 2 - list.length % 2;
+  var idx = (list.length - width) / 2;
   return mean(_slice(list).sort(function(a, b) {
@@ -30,0 +29,0 @@ return a < b ? -1 : a > b ? 1 : 0;

src/mergeAll.js

@@ -15,3 +15,3 @@ var _curry1 = require('./internal/_curry1');
  * @return {Object} A merged object.
- * @see reduce
+ * @see R.reduce
  * @example
@@ -18,0 +18,0 @@ *

src/not.js

@@ -14,3 +14,3 @@ var _curry1 = require('./internal/_curry1');
  * @return {Boolean} the logical inverse of passed argument.
- * @see complement
+ * @see R.complement
  * @example
@@ -17,0 +17,0 @@ *

src/pathEq.js

 var _curry3 = require('./internal/_curry3');
-var _eq = require('./internal/_eq');
 var _path = require('./internal/_path');
+var equals = require('./equals');
 
 
 /**
- * Determines whether a nested path on an object has a specific value.
- * Most likely used to filter a list.
+ * Determines whether a nested path on an object has a specific value,
+ * in `R.equals` terms. Most likely used to filter a list.
  *
- * Has `Object.is` semantics: `NaN` is considered equal to `NaN`; `0` and `-0`
- * are not considered equal.
- *
  * @func
@@ -32,3 +29,3 @@ * @memberOf R
 module.exports = _curry3(function pathEq(path, val, obj) {
-  return _eq(_path(path, obj), val);
+  return equals(_path(path, obj), val);
 });

src/pick.js

 var _curry2 = require('./internal/_curry2');
-var _indexOf = require('./internal/_indexOf');
 
@@ -12,3 +11,3 @@
  * @category Object
- * @sig [String] -> {String: *} -> {String: *}
+ * @sig [k] -> {k: v} -> {k: v}
  * @param {Array} names an array of String property names to copy onto a new object
@@ -24,8 +23,10 @@ * @param {Object} obj The object to copy from
   var result = {};
-  for (var prop in obj) {
-    if (_indexOf(names, prop) >= 0) {
-      result[prop] = obj[prop];
+  var idx = 0;
+  while (idx < names.length) {
+    if (names[idx] in obj) {
+      result[names[idx]] = obj[names[idx]];
     }
+    idx += 1;
   }
   return result;
 });

src/pickAll.js

@@ -22,9 +22,9 @@ var _curry2 = require('./internal/_curry2');
   var result = {};
-  var idx = -1;
-  var len = names.length;
-  while (++idx < len) {
+  var idx = 0;
+  while (idx < names.length) {
     var name = names[idx];
     result[name] = obj[name];
+    idx += 1;
   }
   return result;
 });

src/pluck.js

@@ -11,3 +11,3 @@ var _curry2 = require('./internal/_curry2');
  * @category List
- * @sig String -> {*} -> [*]
+ * @sig k -> [{k: v}] -> [v]
  * @param {Number|String} key The key name to pluck off of each object.
@@ -14,0 +14,0 @@ * @param {Array} list The array to consider.

src/product.js

@@ -14,3 +14,3 @@ var _multiply = require('./internal/_multiply');
  * @return {Number} The product of all the numbers in the list.
- * @see reduce
+ * @see R.reduce
  * @example
@@ -17,0 +17,0 @@ *

src/propEq.js

 var _curry3 = require('./internal/_curry3');
-var _eq = require('./internal/_eq');
+var equals = require('./equals');
 
 
 /**
- * Determines whether the given property of an object has a specific value.
- * Most likely used to filter a list.
+ * Determines whether the given property of an object has a specific value,
+ * in `R.equals` terms. Most likely used to filter a list.
  *
- * Has `Object.is` semantics: `NaN` is considered equal to `NaN`; `0` and `-0`
- * are not considered equal.
- *
  * @func
@@ -30,3 +27,3 @@ * @memberOf R
 module.exports = _curry3(function propEq(name, val, obj) {
-  return _eq(obj[name], val);
+  return equals(obj[name], val);
 });

src/propOr.js

@@ -31,3 +31,3 @@ var _curry3 = require('./internal/_curry3');
 module.exports = _curry3(function propOr(val, p, obj) {
-  return _has(p, obj) ? obj[p] : val;
+  return (obj != null && _has(p, obj)) ? obj[p] : val;
 });

src/props.js

@@ -23,8 +23,8 @@ var _curry2 = require('./internal/_curry2');
 module.exports = _curry2(function props(ps, obj) {
-  var len = ps.length;
   var out = [];
-  var idx = -1;
+  var idx = 0;
 
-  while (++idx < len) {
+  while (idx < ps.length) {
     out[idx] = obj[ps[idx]];
+    idx += 1;
   }
@@ -31,0 +31,0 @@

src/reduce.js

@@ -10,3 +10,4 @@ var _curry3 = require('./internal/_curry3');
  *
- * The iterator function receives two values: *(acc, value)*
+ * The iterator function receives two values: *(acc, value)*.  It may use `R.reduced` to
+ * shortcut the iteration.
  *
@@ -16,2 +17,3 @@ * Note: `R.reduce` does not skip deleted or unassigned indices (sparse arrays), unlike
  * https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/reduce#Description
+ * @see R.reduced
  *
@@ -18,0 +20,0 @@ * @func

src/reduceIndexed.js

@@ -23,2 +23,4 @@ var _curry3 = require('./internal/_curry3');
  * @return {*} The final, accumulated value.
+ * @deprecated since v0.15.0
+ * @see R.addIndex
  * @example
@@ -35,7 +37,8 @@ *
 module.exports = _curry3(function reduceIndexed(fn, acc, list) {
-  var idx = -1, len = list.length;
-  while (++idx < len) {
+  var idx = 0;
+  while (idx < list.length) {
     acc = fn(acc, list[idx], idx, list);
+    idx += 1;
   }
   return acc;
 });

src/reduceRight.js

@@ -36,7 +36,8 @@ var _curry3 = require('./internal/_curry3');
 module.exports = _curry3(function reduceRight(fn, acc, list) {
-  var idx = list.length;
-  while (--idx >= 0) {
+  var idx = list.length - 1;
+  while (idx >= 0) {
     acc = fn(acc, list[idx]);
+    idx -= 1;
   }
   return acc;
 });

src/reduceRightIndexed.js

@@ -24,2 +24,4 @@ var _curry3 = require('./internal/_curry3');
  * @return {*} The final, accumulated value.
+ * @deprecated since v0.15.0
+ * @see R.addIndex
  * @example
@@ -36,7 +38,8 @@ *
 module.exports = _curry3(function reduceRightIndexed(fn, acc, list) {
-  var idx = list.length;
-  while (--idx >= 0) {
+  var idx = list.length - 1;
+  while (idx >= 0) {
     acc = fn(acc, list[idx], idx, list);
+    idx -= 1;
   }
   return acc;
 });

src/rejectIndexed.js

@@ -17,2 +17,4 @@ var _complement = require('./internal/_complement');
  * @return {Array} The new filtered array.
+ * @deprecated since v0.15.0
+ * @see R.addIndex
  * @example
@@ -19,0 +21,0 @@ *

src/scan.js

@@ -22,8 +22,9 @@ var _curry3 = require('./internal/_curry3');
 module.exports = _curry3(function scan(fn, acc, list) {
-  var idx = 0, len = list.length + 1, result = [acc];
-  while (++idx < len) {
-    acc = fn(acc, list[idx - 1]);
-    result[idx] = acc;
+  var idx = 0, result = [acc];
+  while (idx < list.length) {
+    acc = fn(acc, list[idx]);
+    result[idx + 1] = acc;
+    idx += 1;
   }
   return result;
 });

src/strIndexOf.js

@@ -14,2 +14,3 @@ var _curry2 = require('./internal/_curry2');
  * @return {Number} The first index of `c` or -1 if not found.
+ * @deprecated since v0.15.0
  * @example
@@ -16,0 +17,0 @@ *

src/strLastIndexOf.js

@@ -15,2 +15,3 @@ var _curry2 = require('./internal/_curry2');
  * @return {Number} The last index of `c` or -1 if not found.
+ * @deprecated since v0.15.0
  * @example
@@ -17,0 +18,0 @@ *

src/substring.js

@@ -17,2 +17,3 @@ var slice = require('./slice');
  * @see R.slice
+ * @deprecated since v0.15.0
  * @example
@@ -19,0 +20,0 @@ *

src/substringFrom.js

@@ -16,2 +16,3 @@ var __ = require('./__');
  * @return {String}
+ * @deprecated since v0.15.0
  * @example
@@ -18,0 +19,0 @@ *

src/substringTo.js

@@ -14,2 +14,3 @@ var substring = require('./substring');
  * @return {String}
+ * @deprecated since v0.15.0
  * @example
@@ -16,0 +17,0 @@ *

src/sum.js

@@ -14,3 +14,3 @@ var _add = require('./internal/_add');
  * @return {Number} The sum of all the numbers in the list.
- * @see reduce
+ * @see R.reduce
  * @example
@@ -17,0 +17,0 @@ *

src/take.js

 var _curry2 = require('./internal/_curry2');
 var _dispatchable = require('./internal/_dispatchable');
-var _slice = require('./internal/_slice');
 var _xtake = require('./internal/_xtake');
+var slice = require('./slice');
 
 
 /**
- * Returns a new list containing the first `n` elements of the given list.  If
- * `n > * list.length`, returns a list of `list.length` elements.
+ * Returns a new list containing the first `n` elements of the given list.
+ * If `n > list.length`, returns a list of `list.length` elements.
  *
@@ -19,4 +19,4 @@ * Acts as a transducer if a transformer is given in list position.
  * @param {Number} n The number of elements to return.
- * @param {Array} list The array to query.
- * @return {Array} A new array containing the first elements of `list`.
+ * @param {Array} xs The collection to consider.
+ * @return {Array}
  * @example
@@ -32,4 +32,4 @@ *
  */
-module.exports = _curry2(_dispatchable('take', _xtake, function take(n, list) {
-  return _slice(list, 0, n);
+module.exports = _curry2(_dispatchable('take', _xtake, function take(n, xs) {
+  return slice(0, n < 0 ? Infinity : n, xs);
 }));

src/takeWhile.js

@@ -32,5 +32,7 @@ var _curry2 = require('./internal/_curry2');
 module.exports = _curry2(_dispatchable('takeWhile', _xtakeWhile, function takeWhile(fn, list) {
-  var idx = -1, len = list.length;
-  while (++idx < len && fn(list[idx])) {}
+  var idx = 0;
+  while (idx < list.length && fn(list[idx])) {
+    idx += 1;
+  }
   return _slice(list, 0, idx);
 }));

src/transduce.js

@@ -14,3 +14,4 @@ var _reduce = require('./internal/_reduce');
  * transformer to initialize the transducer. A transformer can be passed directly in place
- * of an iterator function.
+ * of an iterator function.  In both cases, iteration may be stopped early with the
+ * `R.reduced` function.
  *
@@ -27,2 +28,4 @@ * A transducer is a function that accepts a transformer and returns a transformer and can
  * The iteration is performed with R.reduce after initializing the transducer.
+ * @see R.reduce
+ * @see R.reduced
  *
@@ -29,0 +32,0 @@ * @func

src/uniq.js

@@ -1,2 +0,4 @@
-var eq = require('./eq');
+var _contains = require('./internal/_contains');
+var _curry1 = require('./internal/_curry1');
+var equals = require('./equals');
 var uniqWith = require('./uniqWith');
@@ -7,4 +9,3 @@
  * Returns a new list containing only one copy of each element in the original list.
- * Equality is strict here, meaning reference equality for objects and non-coercing equality
- * for primitives.
+ * `R.equals` is used to determine equality.
  *
@@ -20,5 +21,41 @@ * @func
  *      R.uniq([1, 1, 2, 1]); //=> [1, 2]
- *      R.uniq([{}, {}]);     //=> [{}, {}]
  *      R.uniq([1, '1']);     //=> [1, '1']
+ *      R.uniq([[42], [42]]); //=> [[42]]
  */
-module.exports = uniqWith(eq);
+module.exports = (function() {
+  /**
+   * Uses a native `Set` instance where possible for
+   * removing duplicate items. Items that implement
+   * the fantasy-land Setoid spec fallback to using
+   * `_contains` to support custom equality behaviour.
+   */
+  function uniq(list) {
+    /* global Set */
+    var item,
+        set = new Set(),
+        idx = 0,
+        len = list.length,
+        items = [],
+        uniqs = [];
+
+    while (idx < len) {
+      item = list[idx];
+      // `_contains` is also used to differentiate between
+      // +0 and -0, as the native Set does not.
+      if (item === 0 || (item != null && typeof item.equals === 'function')) {
+        if (!_contains(item, items)) {
+          items.push(item);
+          uniqs.push(item);
+        }
+      } else {
+        if (set.size !== set.add(item).size) {
+          uniqs.push(item);
+        }
+      }
+      idx += 1;
+    }
+    return uniqs;
+  }
+
+  return typeof Set !== 'function' ? uniqWith(equals) : _curry1(uniq);
+})();

src/uniqWith.js

@@ -26,5 +26,5 @@ var _containsWith = require('./internal/_containsWith');
 module.exports = _curry2(function uniqWith(pred, list) {
-  var idx = -1, len = list.length;
+  var idx = 0;
   var result = [], item;
-  while (++idx < len) {
+  while (idx < list.length) {
     item = list[idx];
@@ -34,4 +34,5 @@ if (!_containsWith(pred, item, result)) {
     }
+    idx += 1;
   }
   return result;
 });

src/update.js

@@ -8,2 +8,3 @@ var _curry3 = require('./internal/_curry3');
  * provided index replaced with the given value.
+ * @see R.adjust
  *
@@ -10,0 +11,0 @@ * @func

src/useWith.js

@@ -71,10 +71,10 @@ var _slice = require('./internal/_slice');
   var transformers = _slice(arguments, 1);
-  var tlen = transformers.length;
-  return curry(arity(tlen, function() {
-    var args = [], idx = -1;
-    while (++idx < tlen) {
+  return curry(arity(transformers.length, function() {
+    var args = [], idx = 0;
+    while (idx < transformers.length) {
       args[idx] = transformers[idx](arguments[idx]);
+      idx += 1;
     }
-    return fn.apply(this, args.concat(_slice(arguments, tlen)));
+    return fn.apply(this, args.concat(_slice(arguments, transformers.length)));
   }));
 });

src/values.js

@@ -22,9 +22,9 @@ var _curry1 = require('./internal/_curry1');
   var props = keys(obj);
-  var len = props.length;
   var vals = [];
-  var idx = -1;
-  while (++idx < len) {
+  var idx = 0;
+  while (idx < props.length) {
     vals[idx] = obj[props[idx]];
+    idx += 1;
   }
   return vals;
 });

src/where.js

@@ -26,4 +26,4 @@ var _curry2 = require('./internal/_curry2');
  *      var pred = R.where({
- *        a: R.eq('foo'),
- *        b: R.complement(R.eq('bar')),
+ *        a: R.equals('foo'),
+ *        b: R.complement(R.equals('bar')),
  *        x: R.gt(_, 10),
@@ -30,0 +30,0 @@ *        y: R.lt(_, 20)

src/whereEq.js

 var _curry2 = require('./internal/_curry2');
-var eq = require('./eq');
+var equals = require('./equals');
 var mapObj = require('./mapObj');
@@ -11,3 +11,3 @@ var where = require('./where');
  * spec's own properties, accessing that property of the object gives the same
- * value (in `R.eq` terms) as accessing that property of the spec.
+ * value (in `R.equals` terms) as accessing that property of the spec.
  *
@@ -27,3 +27,3 @@ * `whereEq` is a specialization of [`where`](#where).
  *      // pred :: Object -> Boolean
- *      var pred = R.where({a: 1, b: 2});
+ *      var pred = R.whereEq({a: 1, b: 2});
  *
@@ -36,3 +36,3 @@ *      pred({a: 1});              //=> false
 module.exports = _curry2(function whereEq(spec, testObj) {
-  return where(mapObj(eq, spec), testObj);
+  return where(mapObj(equals, spec), testObj);
 });

src/xprod.js

@@ -21,14 +21,14 @@ var _curry2 = require('./internal/_curry2');
 module.exports = _curry2(function xprod(a, b) { // = xprodWith(prepend); (takes about 3 times as long...)
-  var idx = -1;
-  var ilen = a.length;
+  var idx = 0;
   var j;
-  var jlen = b.length;
   var result = [];
-  while (++idx < ilen) {
-    j = -1;
-    while (++j < jlen) {
+  while (idx < a.length) {
+    j = 0;
+    while (j < b.length) {
       result[result.length] = [a[idx], b[j]];
+      j += 1;
     }
+    idx += 1;
   }
   return result;
 });

src/zip.js

@@ -23,8 +23,9 @@ var _curry2 = require('./internal/_curry2');
   var rv = [];
-  var idx = -1;
+  var idx = 0;
   var len = Math.min(a.length, b.length);
-  while (++idx < len) {
+  while (idx < len) {
     rv[idx] = [a[idx], b[idx]];
+    idx += 1;
   }
   return rv;
 });

src/zipObj.js

@@ -19,7 +19,8 @@ var _curry2 = require('./internal/_curry2');
 module.exports = _curry2(function zipObj(keys, values) {
-  var idx = -1, len = keys.length, out = {};
-  while (++idx < len) {
+  var idx = 0, out = {};
+  while (idx < keys.length) {
     out[keys[idx]] = values[idx];
+    idx += 1;
   }
   return out;
 });

src/zipWith.js

@@ -27,7 +27,8 @@ var _curry3 = require('./internal/_curry3');
 module.exports = _curry3(function zipWith(fn, a, b) {
-  var rv = [], idx = -1, len = Math.min(a.length, b.length);
-  while (++idx < len) {
+  var rv = [], idx = 0, len = Math.min(a.length, b.length);
+  while (idx < len) {
     rv[idx] = fn(a[idx], b[idx]);
+    idx += 1;
   }
   return rv;
 });

No alert changes

Improved metrics

Total package byte prevSize

595676

increased by9.84%

Dev dependency count

20

decreased by-45.95%

Number of package files

309

increased by2.32%

Lines of code

15076

increased by2.9%

Number of lines in readme file

198

increased by0.51%

No dependency changes