mirror of
https://github.com/whoisclebs/lodash.git
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Bump to v3.6.0.
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@@ -1,5 +1,6 @@
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import baseIndexOf from '../internal/baseIndexOf';
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import isArray from '../lang/isArray';
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import isIterateeCall from '../internal/isIterateeCall';
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import isLength from '../internal/isLength';
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import isString from '../lang/isString';
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import values from '../object/values';
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@@ -12,10 +13,9 @@ var nativeMax = Math.max;
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* comparisons. If `fromIndex` is negative, it is used as the offset from
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* the end of `collection`.
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*
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* **Note:** `SameValueZero` comparisons are like strict equality comparisons,
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* e.g. `===`, except that `NaN` matches `NaN`. See the
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* [ES spec](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-samevaluezero)
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* for more details.
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* **Note:** [`SameValueZero`](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-samevaluezero)
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* comparisons are like strict equality comparisons, e.g. `===`, except that
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* `NaN` matches `NaN`.
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*
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* @static
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* @memberOf _
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@@ -24,6 +24,7 @@ var nativeMax = Math.max;
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* @param {Array|Object|string} collection The collection to search.
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* @param {*} target The value to search for.
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* @param {number} [fromIndex=0] The index to search from.
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* @param- {Object} [guard] Enables use as a callback for functions like `_.reduce`.
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* @returns {boolean} Returns `true` if a matching element is found, else `false`.
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* @example
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*
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@@ -39,7 +40,7 @@ var nativeMax = Math.max;
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* _.includes('pebbles', 'eb');
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* // => true
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*/
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function includes(collection, target, fromIndex) {
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function includes(collection, target, fromIndex, guard) {
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var length = collection ? collection.length : 0;
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if (!isLength(length)) {
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collection = values(collection);
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@@ -48,10 +49,10 @@ function includes(collection, target, fromIndex) {
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if (!length) {
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return false;
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}
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if (typeof fromIndex == 'number') {
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fromIndex = fromIndex < 0 ? nativeMax(length + fromIndex, 0) : (fromIndex || 0);
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} else {
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if (typeof fromIndex != 'number' || (guard && isIterateeCall(target, fromIndex, guard))) {
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fromIndex = 0;
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} else {
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fromIndex = fromIndex < 0 ? nativeMax(length + fromIndex, 0) : (fromIndex || 0);
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}
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return (typeof collection == 'string' || !isArray(collection) && isString(collection))
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? (fromIndex < length && collection.indexOf(target, fromIndex) > -1)
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