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Comparing version 1.7.0 to 1.8.0

underscore-min.map

23

package.json

@@ -18,25 +18,26 @@ {

"main": "underscore.js",
"version": "1.7.0",
"version": "1.8.0",
"devDependencies": {
"docco": "0.6.x",
"phantomjs": "1.9.7-1",
"uglify-js": "2.4.x",
"eslint": "0.6.x"
"eslint": "0.6.x",
"karma": "~0.12.31",
"karma-qunit": "~0.1.4",
"qunit-cli": "~0.2.0",
"uglify-js": "2.4.x"
},
"scripts": {
"test": "phantomjs test/vendor/runner.js test/index.html?noglobals=true && eslint underscore.js test/*.js test/vendor/runner.js",
"test": "npm run test-node && npm run lint",
"lint": "eslint underscore.js test/*.js",
"test-node": "qunit-cli test/*.js",
"test-browser": "npm i karma-phantomjs-launcher && ./node_modules/karma/bin/karma start",
"build": "uglifyjs underscore.js -c \"evaluate=false\" --comments \"/ .*/\" -m --source-map underscore-min.map -o underscore-min.js",
"doc": "docco underscore.js"
},
"licenses": [
{
"type": "MIT",
"url": "https://raw.github.com/jashkenas/underscore/master/LICENSE"
}
],
"license": "MIT",
"files": [
"underscore.js",
"underscore-min.js",
"underscore-min.map",
"LICENSE"
]
}

6

underscore-min.js

@@ -1,6 +0,6 @@

// Underscore.js 1.7.0
// Underscore.js 1.8.0
// http://underscorejs.org
// (c) 2009-2014 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
// (c) 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
// Underscore may be freely distributed under the MIT license.
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//# sourceMappingURL=underscore-min.map

664

underscore.js

@@ -1,4 +0,4 @@

// Underscore.js 1.7.0
// Underscore.js 1.8.0
// http://underscorejs.org
// (c) 2009-2014 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
// (c) 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
// Underscore may be freely distributed under the MIT license.

@@ -24,3 +24,2 @@

slice = ArrayProto.slice,
concat = ArrayProto.concat,
toString = ObjProto.toString,

@@ -34,4 +33,8 @@ hasOwnProperty = ObjProto.hasOwnProperty;

nativeKeys = Object.keys,
nativeBind = FuncProto.bind;
nativeBind = FuncProto.bind,
nativeCreate = Object.create;
// Reusable constructor function for prototype setting.
var Ctor = function(){};
// Create a safe reference to the Underscore object for use below.

@@ -57,3 +60,3 @@ var _ = function(obj) {

// Current version.
_.VERSION = '1.7.0';
_.VERSION = '1.8.0';

@@ -63,3 +66,3 @@ // Internal function that returns an efficient (for current engines) version

// functions.
var createCallback = function(func, context, argCount) {
var optimizeCb = function(func, context, argCount) {
if (context === void 0) return func;

@@ -88,9 +91,49 @@ switch (argCount == null ? 3 : argCount) {

// identity, an arbitrary callback, a property matcher, or a property accessor.
_.iteratee = function(value, context, argCount) {
var cb = function(value, context, argCount) {
if (value == null) return _.identity;
if (_.isFunction(value)) return createCallback(value, context, argCount);
if (_.isObject(value)) return _.matches(value);
if (_.isFunction(value)) return optimizeCb(value, context, argCount);
if (_.isObject(value)) return _.matcher(value);
return _.property(value);
};
_.iteratee = function(value, context) {
return cb(value, context, Infinity);
};
// An internal function for creating assigner functions.
var createAssigner = function(keysFunc, undefinedOnly) {
return function(obj) {
var length = arguments.length;
if (length < 2 || obj == null) return obj;
for (var index = 1; index < length; index++) {
var source = arguments[index],
keys = keysFunc(source),
l = keys.length;
for (var i = 0; i < l; i++) {
var key = keys[i];
if (!undefinedOnly || obj[key] === void 0) obj[key] = source[key];
}
}
return obj;
};
};
// An internal function for creating a new object that inherits from another.
var baseCreate = function(prototype) {
if (!_.isObject(prototype)) return {};
if (nativeCreate) return nativeCreate(prototype);
Ctor.prototype = prototype;
var result = new Ctor;
Ctor.prototype = null;
return result;
};
// Helper for collection methods to determine whether a collection
// should be iterated as an array or as an object
// Related: http://people.mozilla.org/~jorendorff/es6-draft.html#sec-tolength
var MAX_ARRAY_INDEX = Math.pow(2, 53) - 1;
var isArrayLike = function(collection) {
var length = collection && collection.length;
return typeof length == 'number' && length >= 0 && length <= MAX_ARRAY_INDEX;
};
// Collection Functions

@@ -103,7 +146,6 @@ // --------------------

_.each = _.forEach = function(obj, iteratee, context) {
if (obj == null) return obj;
iteratee = createCallback(iteratee, context);
var i, length = obj.length;
if (length === +length) {
for (i = 0; i < length; i++) {
iteratee = optimizeCb(iteratee, context);
var i, length;
if (isArrayLike(obj)) {
for (i = 0, length = obj.length; i < length; i++) {
iteratee(obj[i], i, obj);

@@ -122,10 +164,8 @@ }

_.map = _.collect = function(obj, iteratee, context) {
if (obj == null) return [];
iteratee = _.iteratee(iteratee, context);
var keys = obj.length !== +obj.length && _.keys(obj),
iteratee = cb(iteratee, context);
var keys = !isArrayLike(obj) && _.keys(obj),
length = (keys || obj).length,
results = Array(length),
currentKey;
results = Array(length);
for (var index = 0; index < length; index++) {
currentKey = keys ? keys[index] : index;
var currentKey = keys ? keys[index] : index;
results[index] = iteratee(obj[currentKey], currentKey, obj);

@@ -136,52 +176,44 @@ }

var reduceError = 'Reduce of empty array with no initial value';
// Create a reducing function iterating left or right.
function createReduce(dir) {
// Optimized iterator function as using arguments.length
// in the main function will deoptimize the, see #1991.
function iterator(obj, iteratee, memo, keys, index, length) {
for (; index >= 0 && index < length; index += dir) {
var currentKey = keys ? keys[index] : index;
memo = iteratee(memo, obj[currentKey], currentKey, obj);
}
return memo;
}
return function(obj, iteratee, memo, context) {
iteratee = optimizeCb(iteratee, context, 4);
var keys = !isArrayLike(obj) && _.keys(obj),
length = (keys || obj).length,
index = dir > 0 ? 0 : length - 1;
// Determine the initial value if none is provided.
if (arguments.length < 3) {
memo = obj[keys ? keys[index] : index];
index += dir;
}
return iterator(obj, iteratee, memo, keys, index, length);
};
}
// **Reduce** builds up a single result from a list of values, aka `inject`,
// or `foldl`.
_.reduce = _.foldl = _.inject = function(obj, iteratee, memo, context) {
if (obj == null) obj = [];
iteratee = createCallback(iteratee, context, 4);
var keys = obj.length !== +obj.length && _.keys(obj),
length = (keys || obj).length,
index = 0, currentKey;
if (arguments.length < 3) {
if (!length) throw new TypeError(reduceError);
memo = obj[keys ? keys[index++] : index++];
}
for (; index < length; index++) {
currentKey = keys ? keys[index] : index;
memo = iteratee(memo, obj[currentKey], currentKey, obj);
}
return memo;
};
_.reduce = _.foldl = _.inject = createReduce(1);
// The right-associative version of reduce, also known as `foldr`.
_.reduceRight = _.foldr = function(obj, iteratee, memo, context) {
if (obj == null) obj = [];
iteratee = createCallback(iteratee, context, 4);
var keys = obj.length !== + obj.length && _.keys(obj),
index = (keys || obj).length,
currentKey;
if (arguments.length < 3) {
if (!index) throw new TypeError(reduceError);
memo = obj[keys ? keys[--index] : --index];
}
while (index--) {
currentKey = keys ? keys[index] : index;
memo = iteratee(memo, obj[currentKey], currentKey, obj);
}
return memo;
};
_.reduceRight = _.foldr = createReduce(-1);
// Return the first value which passes a truth test. Aliased as `detect`.
_.find = _.detect = function(obj, predicate, context) {
var result;
predicate = _.iteratee(predicate, context);
_.some(obj, function(value, index, list) {
if (predicate(value, index, list)) {
result = value;
return true;
}
});
return result;
var key;
if (isArrayLike(obj)) {
key = _.findIndex(obj, predicate, context);
} else {
key = _.findKey(obj, predicate, context);
}
if (key !== void 0 && key !== -1) return obj[key];
};

@@ -193,4 +225,3 @@

var results = [];
if (obj == null) return results;
predicate = _.iteratee(predicate, context);
predicate = cb(predicate, context);
_.each(obj, function(value, index, list) {

@@ -204,3 +235,3 @@ if (predicate(value, index, list)) results.push(value);

_.reject = function(obj, predicate, context) {
return _.filter(obj, _.negate(_.iteratee(predicate)), context);
return _.filter(obj, _.negate(cb(predicate)), context);
};

@@ -211,9 +242,7 @@

_.every = _.all = function(obj, predicate, context) {
if (obj == null) return true;
predicate = _.iteratee(predicate, context);
var keys = obj.length !== +obj.length && _.keys(obj),
length = (keys || obj).length,
index, currentKey;
for (index = 0; index < length; index++) {
currentKey = keys ? keys[index] : index;
predicate = cb(predicate, context);
var keys = !isArrayLike(obj) && _.keys(obj),
length = (keys || obj).length;
for (var index = 0; index < length; index++) {
var currentKey = keys ? keys[index] : index;
if (!predicate(obj[currentKey], currentKey, obj)) return false;

@@ -227,9 +256,7 @@ }

_.some = _.any = function(obj, predicate, context) {
if (obj == null) return false;
predicate = _.iteratee(predicate, context);
var keys = obj.length !== +obj.length && _.keys(obj),
length = (keys || obj).length,
index, currentKey;
for (index = 0; index < length; index++) {
currentKey = keys ? keys[index] : index;
predicate = cb(predicate, context);
var keys = !isArrayLike(obj) && _.keys(obj),
length = (keys || obj).length;
for (var index = 0; index < length; index++) {
var currentKey = keys ? keys[index] : index;
if (predicate(obj[currentKey], currentKey, obj)) return true;

@@ -241,6 +268,5 @@ }

// Determine if the array or object contains a given value (using `===`).
// Aliased as `include`.
_.contains = _.include = function(obj, target) {
if (obj == null) return false;
if (obj.length !== +obj.length) obj = _.values(obj);
// Aliased as `includes` and `include`.
_.contains = _.includes = _.include = function(obj, target) {
if (!isArrayLike(obj)) obj = _.values(obj);
return _.indexOf(obj, target) >= 0;

@@ -254,3 +280,4 @@ };

return _.map(obj, function(value) {
return (isFunc ? method : value[method]).apply(value, args);
var func = isFunc ? method : value[method];
return func == null ? func : func.apply(value, args);
});

@@ -267,3 +294,3 @@ };

_.where = function(obj, attrs) {
return _.filter(obj, _.matches(attrs));
return _.filter(obj, _.matcher(attrs));
};

@@ -274,3 +301,3 @@

_.findWhere = function(obj, attrs) {
return _.find(obj, _.matches(attrs));
return _.find(obj, _.matcher(attrs));
};

@@ -283,3 +310,3 @@

if (iteratee == null && obj != null) {
obj = obj.length === +obj.length ? obj : _.values(obj);
obj = isArrayLike(obj) ? obj : _.values(obj);
for (var i = 0, length = obj.length; i < length; i++) {

@@ -292,3 +319,3 @@ value = obj[i];

} else {
iteratee = _.iteratee(iteratee, context);
iteratee = cb(iteratee, context);
_.each(obj, function(value, index, list) {

@@ -310,3 +337,3 @@ computed = iteratee(value, index, list);

if (iteratee == null && obj != null) {
obj = obj.length === +obj.length ? obj : _.values(obj);
obj = isArrayLike(obj) ? obj : _.values(obj);
for (var i = 0, length = obj.length; i < length; i++) {

@@ -319,3 +346,3 @@ value = obj[i];

} else {
iteratee = _.iteratee(iteratee, context);
iteratee = cb(iteratee, context);
_.each(obj, function(value, index, list) {

@@ -335,3 +362,3 @@ computed = iteratee(value, index, list);

_.shuffle = function(obj) {
var set = obj && obj.length === +obj.length ? obj : _.values(obj);
var set = isArrayLike(obj) ? obj : _.values(obj);
var length = set.length;

@@ -352,3 +379,3 @@ var shuffled = Array(length);

if (n == null || guard) {
if (obj.length !== +obj.length) obj = _.values(obj);
if (!isArrayLike(obj)) obj = _.values(obj);
return obj[_.random(obj.length - 1)];

@@ -361,3 +388,3 @@ }

_.sortBy = function(obj, iteratee, context) {
iteratee = _.iteratee(iteratee, context);
iteratee = cb(iteratee, context);
return _.pluck(_.map(obj, function(value, index, list) {

@@ -384,3 +411,3 @@ return {

var result = {};
iteratee = _.iteratee(iteratee, context);
iteratee = cb(iteratee, context);
_.each(obj, function(value, index) {

@@ -413,15 +440,2 @@ var key = iteratee(value, index, obj);

// Use a comparator function to figure out the smallest index at which
// an object should be inserted so as to maintain order. Uses binary search.
_.sortedIndex = function(array, obj, iteratee, context) {
iteratee = _.iteratee(iteratee, context, 1);
var value = iteratee(obj);
var low = 0, high = array.length;
while (low < high) {
var mid = low + high >>> 1;
if (iteratee(array[mid]) < value) low = mid + 1; else high = mid;
}
return low;
};
// Safely create a real, live array from anything iterable.

@@ -431,3 +445,3 @@ _.toArray = function(obj) {

if (_.isArray(obj)) return slice.call(obj);
if (obj.length === +obj.length) return _.map(obj, _.identity);
if (isArrayLike(obj)) return _.map(obj, _.identity);
return _.values(obj);

@@ -439,3 +453,3 @@ };

if (obj == null) return 0;
return obj.length === +obj.length ? obj.length : _.keys(obj).length;
return isArrayLike(obj) ? obj.length : _.keys(obj).length;
};

@@ -446,3 +460,3 @@

_.partition = function(obj, predicate, context) {
predicate = _.iteratee(predicate, context);
predicate = cb(predicate, context);
var pass = [], fail = [];

@@ -464,4 +478,3 @@ _.each(obj, function(value, key, obj) {

if (n == null || guard) return array[0];
if (n < 0) return [];
return slice.call(array, 0, n);
return _.initial(array, array.length - n);
};

@@ -471,4 +484,3 @@

// the arguments object. Passing **n** will return all the values in
// the array, excluding the last N. The **guard** check allows it to work with
// `_.map`.
// the array, excluding the last N.
_.initial = function(array, n, guard) {

@@ -479,7 +491,7 @@ return slice.call(array, 0, Math.max(0, array.length - (n == null || guard ? 1 : n)));

// Get the last element of an array. Passing **n** will return the last N
// values in the array. The **guard** check allows it to work with `_.map`.
// values in the array.
_.last = function(array, n, guard) {
if (array == null) return void 0;
if (n == null || guard) return array[array.length - 1];
return slice.call(array, Math.max(array.length - n, 0));
return _.rest(array, Math.max(0, array.length - n));
};

@@ -489,4 +501,3 @@

// Especially useful on the arguments object. Passing an **n** will return
// the rest N values in the array. The **guard**
// check allows it to work with `_.map`.
// the rest N values in the array.
_.rest = _.tail = _.drop = function(array, n, guard) {

@@ -502,14 +513,16 @@ return slice.call(array, n == null || guard ? 1 : n);

// Internal implementation of a recursive `flatten` function.
var flatten = function(input, shallow, strict, output) {
if (shallow && _.every(input, _.isArray)) {
return concat.apply(output, input);
}
for (var i = 0, length = input.length; i < length; i++) {
var flatten = function(input, shallow, strict, startIndex) {
var output = [], idx = 0;
for (var i = startIndex || 0, length = input && input.length; i < length; i++) {
var value = input[i];
if (!_.isArray(value) && !_.isArguments(value)) {
if (!strict) output.push(value);
} else if (shallow) {
push.apply(output, value);
} else {
flatten(value, shallow, strict, output);
if (isArrayLike(value) && (_.isArray(value) || _.isArguments(value))) {
//flatten current level of array or arguments object
if (!shallow) value = flatten(value, shallow, strict);
var j = 0, len = value.length;
output.length += len;
while (j < len) {
output[idx++] = value[j++];
}
} else if (!strict) {
output[idx++] = value;
}

@@ -522,3 +535,3 @@ }

_.flatten = function(array, shallow) {
return flatten(array, shallow, false, []);
return flatten(array, shallow, false);
};

@@ -541,17 +554,17 @@

}
if (iteratee != null) iteratee = _.iteratee(iteratee, context);
if (iteratee != null) iteratee = cb(iteratee, context);
var result = [];
var seen = [];
for (var i = 0, length = array.length; i < length; i++) {
var value = array[i];
var value = array[i],
computed = iteratee ? iteratee(value, i, array) : value;
if (isSorted) {
if (!i || seen !== value) result.push(value);
seen = value;
if (!i || seen !== computed) result.push(value);
seen = computed;
} else if (iteratee) {
var computed = iteratee(value, i, array);
if (_.indexOf(seen, computed) < 0) {
if (!_.contains(seen, computed)) {
seen.push(computed);
result.push(value);
}
} else if (_.indexOf(result, value) < 0) {
} else if (!_.contains(result, value)) {
result.push(value);

@@ -566,3 +579,3 @@ }

_.union = function() {
return _.uniq(flatten(arguments, true, true, []));
return _.uniq(flatten(arguments, true, true));
};

@@ -590,3 +603,3 @@

_.difference = function(array) {
var rest = flatten(slice.call(arguments, 1), true, true, []);
var rest = flatten(arguments, true, true, 1);
return _.filter(array, function(value){

@@ -599,10 +612,16 @@ return !_.contains(rest, value);

// an index go together.
_.zip = function(array) {
if (array == null) return [];
var length = _.max(arguments, 'length').length;
var results = Array(length);
for (var i = 0; i < length; i++) {
results[i] = _.pluck(arguments, i);
_.zip = function() {
return _.unzip(arguments);
};
// Complement of _.zip. Unzip accepts an array of arrays and groups
// each array's elements on shared indices
_.unzip = function(array) {
var length = array && _.max(array, 'length').length || 0;
var result = Array(length);
for (var index = 0; index < length; index++) {
result[index] = _.pluck(array, index);
}
return results;
return result;
};

@@ -614,5 +633,4 @@

_.object = function(list, values) {
if (list == null) return {};
var result = {};
for (var i = 0, length = list.length; i < length; i++) {
for (var i = 0, length = list && list.length; i < length; i++) {
if (values) {

@@ -632,12 +650,12 @@ result[list[i]] = values[i];

_.indexOf = function(array, item, isSorted) {
if (array == null) return -1;
var i = 0, length = array.length;
if (isSorted) {
if (typeof isSorted == 'number') {
i = isSorted < 0 ? Math.max(0, length + isSorted) : isSorted;
} else {
i = _.sortedIndex(array, item);
return array[i] === item ? i : -1;
}
var i = 0, length = array && array.length;
if (typeof isSorted == 'number') {
i = isSorted < 0 ? Math.max(0, length + isSorted) : isSorted;
} else if (isSorted && length) {
i = _.sortedIndex(array, item);
return array[i] === item ? i : -1;
}
if (item !== item) {
return _.findIndex(slice.call(array, i), _.isNaN);
}
for (; i < length; i++) if (array[i] === item) return i;

@@ -648,7 +666,9 @@ return -1;

_.lastIndexOf = function(array, item, from) {
if (array == null) return -1;
var idx = array.length;
var idx = array ? array.length : 0;
if (typeof from == 'number') {
idx = from < 0 ? idx + from + 1 : Math.min(idx, from + 1);
}
if (item !== item) {
return _.findLastIndex(slice.call(array, 0, idx), _.isNaN);
}
while (--idx >= 0) if (array[idx] === item) return idx;

@@ -658,2 +678,33 @@ return -1;

// Generator function to create the findIndex and findLastIndex functions
function createIndexFinder(dir) {
return function(array, predicate, context) {
predicate = cb(predicate, context);
var length = array != null && array.length;
var index = dir > 0 ? 0 : length - 1;
for (; index >= 0 && index < length; index += dir) {
if (predicate(array[index], index, array)) return index;
}
return -1;
};
}
// Returns the first index on an array-like that passes a predicate test
_.findIndex = createIndexFinder(1);
_.findLastIndex = createIndexFinder(-1);
// Use a comparator function to figure out the smallest index at which
// an object should be inserted so as to maintain order. Uses binary search.
_.sortedIndex = function(array, obj, iteratee, context) {
iteratee = cb(iteratee, context, 1);
var value = iteratee(obj);
var low = 0, high = array.length;
while (low < high) {
var mid = Math.floor((low + high) / 2);
if (iteratee(array[mid]) < value) low = mid + 1; else high = mid;
}
return low;
};
// Generate an integer Array containing an arithmetic progression. A port of

@@ -682,4 +733,11 @@ // the native Python `range()` function. See

// Reusable constructor function for prototype setting.
var Ctor = function(){};
// Determines whether to execute a function as a constructor
// or a normal function with the provided arguments
var executeBound = function(sourceFunc, boundFunc, context, callingContext, args) {
if (!(callingContext instanceof boundFunc)) return sourceFunc.apply(context, args);
var self = baseCreate(sourceFunc.prototype);
var result = sourceFunc.apply(self, args);
if (_.isObject(result)) return result;
return self;
};

@@ -690,16 +748,8 @@ // Create a function bound to a given object (assigning `this`, and arguments,

_.bind = function(func, context) {
var args, bound;
if (nativeBind && func.bind === nativeBind) return nativeBind.apply(func, slice.call(arguments, 1));
if (!_.isFunction(func)) throw new TypeError('Bind must be called on a function');
args = slice.call(arguments, 2);
bound = function() {
if (!(this instanceof bound)) return func.apply(context, args.concat(slice.call(arguments)));
Ctor.prototype = func.prototype;
var self = new Ctor;
Ctor.prototype = null;
var result = func.apply(self, args.concat(slice.call(arguments)));
if (_.isObject(result)) return result;
return self;
var args = slice.call(arguments, 2);
return function bound() {
return executeBound(func, bound, context, this, args.concat(slice.call(arguments)));
};
return bound;
};

@@ -712,10 +762,10 @@

var boundArgs = slice.call(arguments, 1);
return function() {
var position = 0;
var args = boundArgs.slice();
for (var i = 0, length = args.length; i < length; i++) {
if (args[i] === _) args[i] = arguments[position++];
return function bound() {
var position = 0, length = boundArgs.length;
var args = Array(length);
for (var i = 0; i < length; i++) {
args[i] = boundArgs[i] === _ ? arguments[position++] : boundArgs[i];
}
while (position < arguments.length) args.push(arguments[position++]);
return func.apply(this, args);
return executeBound(func, bound, this, this, args);
};

@@ -741,3 +791,3 @@ };

var cache = memoize.cache;
var address = hasher ? hasher.apply(this, arguments) : key;
var address = '' + (hasher ? hasher.apply(this, arguments) : key);
if (!_.has(cache, address)) cache[address] = func.apply(this, arguments);

@@ -761,5 +811,3 @@ return cache[address];

// cleared.
_.defer = function(func) {
return _.delay.apply(_, [func, 1].concat(slice.call(arguments, 1)));
};
_.defer = _.partial(_.delay, _, 1);

@@ -789,4 +837,6 @@ // Returns a function, that, when invoked, will only be triggered at most once

if (remaining <= 0 || remaining > wait) {
clearTimeout(timeout);
timeout = null;
if (timeout) {
clearTimeout(timeout);
timeout = null;
}
previous = now;

@@ -812,3 +862,3 @@ result = func.apply(context, args);

if (last < wait && last > 0) {
if (last < wait && last >= 0) {
timeout = setTimeout(later, wait - last);

@@ -866,3 +916,3 @@ } else {

// Returns a function that will only be executed after being called N times.
// Returns a function that will only be executed on and after the Nth call.
_.after = function(times, func) {

@@ -876,3 +926,3 @@ return function() {

// Returns a function that will only be executed before being called N times.
// Returns a function that will only be executed up to (but not including) the Nth call.
_.before = function(times, func) {

@@ -883,5 +933,4 @@ var memo;

memo = func.apply(this, arguments);
} else {
func = null;
}
if (times <= 1) func = null;
return memo;

@@ -898,3 +947,21 @@ };

// Retrieve the names of an object's properties.
// Keys in IE < 9 that won't be iterated by `for key in ...` and thus missed.
var hasEnumBug = !{toString: null}.propertyIsEnumerable('toString');
var nonEnumerableProps = ['constructor', 'valueOf', 'isPrototypeOf', 'toString',
'propertyIsEnumerable', 'hasOwnProperty', 'toLocaleString'];
function collectNonEnumProps(obj, keys) {
var nonEnumIdx = nonEnumerableProps.length;
var proto = typeof obj.constructor === 'function' ? FuncProto : ObjProto;
while (nonEnumIdx--) {
var prop = nonEnumerableProps[nonEnumIdx];
if (prop === 'constructor' ? _.has(obj, prop) : prop in obj &&
obj[prop] !== proto[prop] && !_.contains(keys, prop)) {
keys.push(prop);
}
}
}
// Retrieve the names of an object's own properties.
// Delegates to **ECMAScript 5**'s native `Object.keys`

@@ -906,5 +973,17 @@ _.keys = function(obj) {

for (var key in obj) if (_.has(obj, key)) keys.push(key);
// Ahem, IE < 9.
if (hasEnumBug) collectNonEnumProps(obj, keys);
return keys;
};
// Retrieve all the property names of an object.
_.allKeys = function(obj) {
if (!_.isObject(obj)) return [];
var keys = [];
for (var key in obj) keys.push(key);
// Ahem, IE < 9.
if (hasEnumBug) collectNonEnumProps(obj, keys);
return keys;
};
// Retrieve the values of an object's properties.

@@ -921,2 +1000,17 @@ _.values = function(obj) {

// Returns the results of applying the iteratee to each element of the object
// In contrast to _.map it returns an object
_.mapObject = function(obj, iteratee, context) {
iteratee = cb(iteratee, context);
var keys = _.keys(obj),
length = keys.length,
results = {},
currentKey;
for (var index = 0; index < length; index++) {
currentKey = keys[index];
results[currentKey] = iteratee(obj[currentKey], currentKey, obj);
}
return results;
};
// Convert an object into a list of `[key, value]` pairs.

@@ -954,14 +1048,16 @@ _.pairs = function(obj) {

// Extend a given object with all the properties in passed-in object(s).
_.extend = function(obj) {
if (!_.isObject(obj)) return obj;
var source, prop;
for (var i = 1, length = arguments.length; i < length; i++) {
source = arguments[i];
for (prop in source) {
if (hasOwnProperty.call(source, prop)) {
obj[prop] = source[prop];
}
}
_.extend = createAssigner(_.allKeys);
// Assigns a given object with all the own properties in the passed-in object(s)
// (https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/assign)
_.extendOwn = createAssigner(_.keys);
// Returns the first key on an object that passes a predicate test
_.findKey = function(obj, predicate, context) {
predicate = cb(predicate, context);
var keys = _.keys(obj), key;
for (var i = 0, length = keys.length; i < length; i++) {
key = keys[i];
if (predicate(obj[key], key, obj)) return key;
}
return obj;
};

@@ -974,3 +1070,3 @@

if (_.isFunction(iteratee)) {
iteratee = createCallback(iteratee, context);
iteratee = optimizeCb(iteratee, context);
for (key in obj) {

@@ -981,3 +1077,3 @@ var value = obj[key];

} else {
var keys = concat.apply([], slice.call(arguments, 1));
var keys = flatten(arguments, false, false, 1);
obj = new Object(obj);

@@ -997,3 +1093,3 @@ for (var i = 0, length = keys.length; i < length; i++) {

} else {
var keys = _.map(concat.apply([], slice.call(arguments, 1)), String);
var keys = _.map(flatten(arguments, false, false, 1), String);
iteratee = function(value, key) {

@@ -1007,12 +1103,3 @@ return !_.contains(keys, key);

// Fill in a given object with default properties.
_.defaults = function(obj) {
if (!_.isObject(obj)) return obj;
for (var i = 1, length = arguments.length; i < length; i++) {
var source = arguments[i];
for (var prop in source) {
if (obj[prop] === void 0) obj[prop] = source[prop];
}
}
return obj;
};
_.defaults = createAssigner(_.allKeys, true);

@@ -1033,2 +1120,15 @@ // Create a (shallow-cloned) duplicate of an object.

// Returns whether an object has a given set of `key:value` pairs.
_.isMatch = function(object, attrs) {
var keys = _.keys(attrs), length = keys.length;
if (object == null) return !length;
var obj = Object(object);
for (var i = 0; i < length; i++) {
var key = keys[i];
if (attrs[key] !== obj[key] || !(key in obj)) return false;
}
return true;
};
// Internal recursive comparison function for `isEqual`.

@@ -1068,5 +1168,23 @@ var eq = function(a, b, aStack, bStack) {

}
if (typeof a != 'object' || typeof b != 'object') return false;
var areArrays = className === '[object Array]';
if (!areArrays) {
if (typeof a != 'object' || typeof b != 'object') return false;
// Objects with different constructors are not equivalent, but `Object`s or `Array`s
// from different frames are.
var aCtor = a.constructor, bCtor = b.constructor;
if (aCtor !== bCtor && !(_.isFunction(aCtor) && aCtor instanceof aCtor &&
_.isFunction(bCtor) && bCtor instanceof bCtor)
&& ('constructor' in a && 'constructor' in b)) {
return false;
}
}
// Assume equality for cyclic structures. The algorithm for detecting cyclic
// structures is adapted from ES 5.1 section 15.12.3, abstract operation `JO`.
// Initializing stack of traversed objects.
// It's done here since we only need them for objects and arrays comparison.
aStack = aStack || [];
bStack = bStack || [];
var length = aStack.length;

@@ -1078,28 +1196,15 @@ while (length--) {

}
// Objects with different constructors are not equivalent, but `Object`s
// from different frames are.
var aCtor = a.constructor, bCtor = b.constructor;
if (
aCtor !== bCtor &&
// Handle Object.create(x) cases
'constructor' in a && 'constructor' in b &&
!(_.isFunction(aCtor) && aCtor instanceof aCtor &&
_.isFunction(bCtor) && bCtor instanceof bCtor)
) {
return false;
}
// Add the first object to the stack of traversed objects.
aStack.push(a);
bStack.push(b);
var size, result;
// Recursively compare objects and arrays.
if (className === '[object Array]') {
if (areArrays) {
// Compare array lengths to determine if a deep comparison is necessary.
size = a.length;
result = size === b.length;
if (result) {
// Deep compare the contents, ignoring non-numeric properties.
while (size--) {
if (!(result = eq(a[size], b[size], aStack, bStack))) break;
}
length = a.length;
if (length !== b.length) return false;
// Deep compare the contents, ignoring non-numeric properties.
while (length--) {
if (!eq(a[length], b[length], aStack, bStack)) return false;
}

@@ -1109,11 +1214,9 @@ } else {

var keys = _.keys(a), key;
size = keys.length;
length = keys.length;
// Ensure that both objects contain the same number of properties before comparing deep equality.
result = _.keys(b).length === size;
if (result) {
while (size--) {
// Deep compare each member
key = keys[size];
if (!(result = _.has(b, key) && eq(a[key], b[key], aStack, bStack))) break;
}
if (_.keys(b).length !== length) return false;
while (length--) {
// Deep compare each member
key = keys[length];
if (!(_.has(b, key) && eq(a[key], b[key], aStack, bStack))) return false;
}

@@ -1124,3 +1227,3 @@ }

bStack.pop();
return result;
return true;
};

@@ -1130,3 +1233,3 @@

_.isEqual = function(a, b) {
return eq(a, b, [], []);
return eq(a, b);
};

@@ -1138,5 +1241,4 @@

if (obj == null) return true;
if (_.isArray(obj) || _.isString(obj) || _.isArguments(obj)) return obj.length === 0;
for (var key in obj) if (_.has(obj, key)) return false;
return true;
if (isArrayLike(obj) && (_.isArray(obj) || _.isString(obj) || _.isArguments(obj))) return obj.length === 0;
return _.keys(obj).length === 0;
};

@@ -1161,4 +1263,4 @@

// Add some isType methods: isArguments, isFunction, isString, isNumber, isDate, isRegExp.
_.each(['Arguments', 'Function', 'String', 'Number', 'Date', 'RegExp'], function(name) {
// Add some isType methods: isArguments, isFunction, isString, isNumber, isDate, isRegExp, isError.
_.each(['Arguments', 'Function', 'String', 'Number', 'Date', 'RegExp', 'Error'], function(name) {
_['is' + name] = function(obj) {

@@ -1169,3 +1271,3 @@ return toString.call(obj) === '[object ' + name + ']';

// Define a fallback version of the method in browsers (ahem, IE), where
// Define a fallback version of the method in browsers (ahem, IE < 9), where
// there isn't any inspectable "Arguments" type.

@@ -1178,4 +1280,5 @@ if (!_.isArguments(arguments)) {

// Optimize `isFunction` if appropriate. Work around an IE 11 bug.
if (typeof /./ !== 'function') {
// Optimize `isFunction` if appropriate. Work around some typeof bugs in old v8,
// IE 11 (#1621), and in Safari 8 (#1929).
if (typeof /./ != 'function' && typeof Int8Array != 'object') {
_.isFunction = function(obj) {

@@ -1232,2 +1335,3 @@ return typeof obj == 'function' || false;

// Predicate-generating functions. Often useful outside of Underscore.
_.constant = function(value) {

@@ -1243,2 +1347,9 @@ return function() {

return function(obj) {
return obj == null ? void 0 : obj[key];
};
};
// Generates a function for a given object that returns a given property.
_.propertyOf = function(obj) {
return obj == null ? function(){} : function(key) {
return obj[key];

@@ -1248,13 +1359,8 @@ };

// Returns a predicate for checking whether an object has a given set of `key:value` pairs.
_.matches = function(attrs) {
var pairs = _.pairs(attrs), length = pairs.length;
// Returns a predicate for checking whether an object has a given set of
// `key:value` pairs.
_.matcher = _.matches = function(attrs) {
attrs = _.extendOwn({}, attrs);
return function(obj) {
if (obj == null) return !length;
obj = new Object(obj);
for (var i = 0; i < length; i++) {
var pair = pairs[i], key = pair[0];
if (pair[1] !== obj[key] || !(key in obj)) return false;
}
return true;
return _.isMatch(obj, attrs);
};

@@ -1266,3 +1372,3 @@ };

var accum = Array(Math.max(0, n));
iteratee = createCallback(iteratee, context, 1);
iteratee = optimizeCb(iteratee, context, 1);
for (var i = 0; i < n; i++) accum[i] = iteratee(i);

@@ -1316,6 +1422,8 @@ return accum;

// `object` as context; otherwise, return it.
_.result = function(object, property) {
if (object == null) return void 0;
var value = object[property];
return _.isFunction(value) ? object[property]() : value;
_.result = function(object, property, fallback) {
var value = object == null ? void 0 : object[property];
if (value === void 0) {
value = fallback;
}
return _.isFunction(value) ? value.call(object) : value;
};

@@ -1435,4 +1543,4 @@

// Helper function to continue chaining intermediate results.
var result = function(obj) {
return this._chain ? _(obj).chain() : obj;
var result = function(instance, obj) {
return instance._chain ? _(obj).chain() : obj;
};

@@ -1447,3 +1555,3 @@

push.apply(args, arguments);
return result.call(this, func.apply(_, args));
return result(this, func.apply(_, args));
};

@@ -1463,3 +1571,3 @@ });

if ((name === 'shift' || name === 'splice') && obj.length === 0) delete obj[0];
return result.call(this, obj);
return result(this, obj);
};

@@ -1472,3 +1580,3 @@ });

_.prototype[name] = function() {
return result.call(this, method.apply(this._wrapped, arguments));
return result(this, method.apply(this._wrapped, arguments));
};

@@ -1482,2 +1590,10 @@ });

// Provide unwrapping proxy for some methods used in engine operations
// such as arithmetic and JSON stringification.
_.prototype.valueOf = _.prototype.toJSON = _.prototype.value;
_.prototype.toString = function() {
return '' + this._wrapped;
};
// AMD registration happens at the end for compatibility with AMD loaders

@@ -1484,0 +1600,0 @@ // that may not enforce next-turn semantics on modules. Even though general

LICENSE

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