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Bump to v4.0.0.
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69
lodash._arrayincludes/index.js
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69
lodash._arrayincludes/index.js
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/**
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* lodash 4.0.0 (Custom Build) <https://lodash.com/>
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* Build: `lodash modularize exports="npm" -o ./`
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* Copyright 2012-2016 The Dojo Foundation <http://dojofoundation.org/>
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* Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
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* Copyright 2009-2016 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
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* Available under MIT license <https://lodash.com/license>
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*/
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/**
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* A specialized version of `_.includes` for arrays without support for
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* specifying an index to search from.
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*
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* @private
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* @param {Array} array The array to search.
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* @param {*} target The value to search for.
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* @returns {boolean} Returns `true` if `target` is found, else `false`.
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*/
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function arrayIncludes(array, value) {
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return !!array.length && baseIndexOf(array, value, 0) > -1;
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}
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/**
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* The base implementation of `_.indexOf` without `fromIndex` bounds checks.
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*
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* @private
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* @param {Array} array The array to search.
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* @param {*} value The value to search for.
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* @param {number} fromIndex The index to search from.
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* @returns {number} Returns the index of the matched value, else `-1`.
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*/
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function baseIndexOf(array, value, fromIndex) {
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if (value !== value) {
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return indexOfNaN(array, fromIndex);
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}
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var index = fromIndex - 1,
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length = array.length;
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while (++index < length) {
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if (array[index] === value) {
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return index;
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}
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}
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return -1;
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}
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/**
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* Gets the index at which the first occurrence of `NaN` is found in `array`.
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*
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* @private
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* @param {Array} array The array to search.
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* @param {number} fromIndex The index to search from.
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* @param {boolean} [fromRight] Specify iterating from right to left.
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* @returns {number} Returns the index of the matched `NaN`, else `-1`.
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*/
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function indexOfNaN(array, fromIndex, fromRight) {
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var length = array.length,
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index = fromIndex + (fromRight ? 0 : -1);
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while ((fromRight ? index-- : ++index < length)) {
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var other = array[index];
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if (other !== other) {
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return index;
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}
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}
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return -1;
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}
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module.exports = arrayIncludes;
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