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Former-commit-id: e66c5377ffb5c03191673004bb82781a0562535a
This commit is contained in:
John-David Dalton
2013-07-06 20:08:41 -07:00
parent 7ce5dcdead
commit 5028b07aaa
7 changed files with 563 additions and 499 deletions
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205
dist/lodash.js vendored
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@@ -34,13 +34,26 @@
/** Used as the max size of the `arrayPool` and `objectPool` */
var maxPoolSize = 40;
/** Used to detect and test whitespace */
var whitespace = (
// whitespace
' \t\x0B\f\xA0\ufeff' +
// line terminators
'\n\r\u2028\u2029' +
// unicode category "Zs" space separators
'\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u202f\u205f\u3000'
);
/** Used to match empty string literals in compiled template source */
var reEmptyStringLeading = /\b__p \+= '';/g,
reEmptyStringMiddle = /\b(__p \+=) '' \+/g,
reEmptyStringTrailing = /(__e\(.*?\)|\b__t\)) \+\n'';/g;
/** Used to match HTML entities */
var reEscapedHtml = /&(?:amp|lt|gt|quot|#39);/g;
/** Used to match HTML entities and HTML characters */
var reEscapedHtml = /&(?:amp|lt|gt|quot|#39);/g,
reUnescapedHtml = /[&<>"']/g;
/**
* Used to match ES6 template delimiters
@@ -54,29 +67,14 @@
/** Used to match "interpolate" template delimiters */
var reInterpolate = /<%=([\s\S]+?)%>/g;
/** Used to detect functions containing a `this` reference */
var reThis = (reThis = /\bthis\b/) && reThis.test(runInContext) && reThis;
/** Used to detect and test whitespace */
var whitespace = (
// whitespace
' \t\x0B\f\xA0\ufeff' +
// line terminators
'\n\r\u2028\u2029' +
// unicode category "Zs" space separators
'\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u202f\u205f\u3000'
);
/** Used to match leading whitespace and zeros to be removed */
var reLeadingSpacesAndZeros = RegExp('^[' + whitespace + ']*0+(?=.$)');
/** Used to ensure capturing order of template delimiters */
var reNoMatch = /($^)/;
/** Used to match HTML characters */
var reUnescapedHtml = /[&<>"']/g;
/** Used to detect functions containing a `this` reference */
var reThis = (reThis = /\bthis\b/) && reThis.test(runInContext) && reThis;
/** Used to match unescaped characters in compiled string literals */
var reUnescapedString = /['\n\r\t\u2028\u2029\\]/g;
@@ -663,6 +661,88 @@
/*--------------------------------------------------------------------------*/
/**
* A basic implementation of `_.flatten` without support for `callback`
* shorthands or `thisArg` binding.
*
* @private
* @param {Array} array The array to flatten.
* @param {Boolean} [isShallow=false] A flag to indicate only flattening a single level.
* @param {Function} [callback] The function called per iteration.
* @returns {Array} Returns a new flattened array.
*/
function basicFlatten(array, isShallow, callback) {
var index = -1,
length = array ? array.length : 0,
result = [];
while (++index < length) {
var value = array[index];
if (callback) {
value = callback(value, index, array);
}
// recursively flatten arrays (susceptible to call stack limits)
if (value && typeof value == 'object' && (isArray(value) || isArguments(value))) {
push.apply(result, isShallow ? value : basicFlatten(value));
} else {
result.push(value);
}
}
return result;
}
/**
* A basic implementation of `_.uniq` without support for `callback` shorthands
* or `thisArg` binding.
*
* @private
* @param {Array} array The array to process.
* @param {Boolean} [isSorted=false] A flag to indicate that the `array` is already sorted.
* @param {Function} [callback] The function called per iteration.
* @returns {Array} Returns a duplicate-value-free array.
*/
function basicUniq(array, isSorted, callback) {
var index = -1,
indexOf = getIndexOf(),
length = array ? array.length : 0,
result = [];
var isLarge = !isSorted && length >= largeArraySize && indexOf === basicIndexOf,
seen = (callback || isLarge) ? getArray() : result;
if (isLarge) {
var cache = createCache(seen);
if (cache) {
indexOf = cacheIndexOf;
seen = cache;
} else {
isLarge = false;
seen = callback ? seen : (releaseArray(seen), result);
}
}
while (++index < length) {
var value = array[index],
computed = callback ? callback(value, index, array) : value;
if (isSorted
? !index || seen[seen.length - 1] !== computed
: indexOf(seen, computed) < 0
) {
if (callback || isLarge) {
seen.push(computed);
}
result.push(value);
}
}
if (isLarge) {
releaseArray(seen.array);
releaseObject(seen);
} else if (callback) {
releaseArray(seen);
}
return result;
}
/**
* Creates a function that, when called, invokes `func` with the `this` binding
* of `thisArg` and prepends any `partialArgs` to the arguments passed to the
@@ -837,7 +917,7 @@
* // => false
*/
function isArguments(value) {
return toString.call(value) == argsClass;
return (value && typeof value == 'object') ? toString.call(value) == argsClass : false;
}
/**
@@ -3492,25 +3572,7 @@
* _.flatten(stooges, 'quotes');
* // => ['Oh, a wise guy, eh?', 'Poifect!', 'Spread out!', 'You knucklehead!']
*/
var flatten = overloadWrapper(function flatten(array, isShallow, callback) {
var index = -1,
length = array ? array.length : 0,
result = [];
while (++index < length) {
var value = array[index];
if (callback) {
value = callback(value, index, array);
}
// recursively flatten arrays (susceptible to call stack limits)
if (isArray(value)) {
push.apply(result, isShallow ? value : flatten(value));
} else {
result.push(value);
}
}
return result;
});
var flatten = overloadWrapper(basicFlatten);
/**
* Gets the index at which the first occurrence of `value` is found using
@@ -3997,10 +4059,10 @@
* // => [1, 2, 3, 101, 10]
*/
function union(array) {
if (!isArray(array)) {
arguments[0] = array ? nativeSlice.call(array) : arrayRef;
if (!array) {
arguments[0] = arrayRef;
}
return uniq(concat.apply(arrayRef, arguments));
return basicUniq(basicFlatten(arguments, true));
}
/**
@@ -4046,47 +4108,7 @@
* _.uniq([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x');
* // => [{ 'x': 1 }, { 'x': 2 }]
*/
var uniq = overloadWrapper(function(array, isSorted, callback) {
var index = -1,
indexOf = getIndexOf(),
length = array ? array.length : 0,
result = [];
var isLarge = !isSorted && length >= largeArraySize && indexOf === basicIndexOf,
seen = (callback || isLarge) ? getArray() : result;
if (isLarge) {
var cache = createCache(seen);
if (cache) {
indexOf = cacheIndexOf;
seen = cache;
} else {
isLarge = false;
seen = callback ? seen : (releaseArray(seen), result);
}
}
while (++index < length) {
var value = array[index],
computed = callback ? callback(value, index, array) : value;
if (isSorted
? !index || seen[seen.length - 1] !== computed
: indexOf(seen, computed) < 0
) {
if (callback || isLarge) {
seen.push(computed);
}
result.push(value);
}
}
if (isLarge) {
releaseArray(seen.array);
releaseObject(seen);
} else if (callback) {
releaseArray(seen);
}
return result;
});
var uniq = overloadWrapper(basicUniq);
/**
* The inverse of `_.zip`, this method splits groups of elements into arrays
@@ -4102,8 +4124,9 @@
* _.unzip([['moe', 30, true], ['larry', 40, false]]);
* // => [['moe', 'larry'], [30, 40], [true, false]];
*/
function unzip(array) {
var index = -1,
function unzip() {
var array = arguments.length > 1 ? arguments : arguments[0],
index = -1,
length = array ? max(pluck(array, 'length')) : 0,
result = Array(length < 0 ? 0 : length);
@@ -4189,17 +4212,14 @@
/*--------------------------------------------------------------------------*/
/**
* If `n` is greater than `0`, a function is created that is restricted to
* executing `func`, with the `this` binding and arguments of the created
* function, only after it is called `n` times. If `n` is less than `1`,
* `func` is executed immediately, without a `this` binding or additional
* arguments, and its result is returned.
* Creates a function this is restricted to executing `func`, with the `this`
* binding and arguments of the created function, only after it is called `n` times.
*
* @static
* @memberOf _
* @category Functions
* @param {Number} n The number of times the function must be called before
* it is executed.
* `func` is executed.
* @param {Function} func The function to restrict.
* @returns {Function} Returns the new restricted function.
* @example
@@ -4211,9 +4231,6 @@
* // `renderNotes` is run once, after all notes have saved
*/
function after(n, func) {
if (n < 1) {
return func();
}
return function() {
if (--n < 1) {
return func.apply(this, arguments);