define(['../internal/baseIndexOf', '../lang/isArray', '../internal/isLength', '../lang/isString', '../object/values'], function(baseIndexOf, isArray, isLength, isString, values) { /* Native method references for those with the same name as other `lodash` methods. */ var nativeMax = Math.max; /** * Checks if `value` is in `collection` using `SameValueZero` for equality * comparisons. If `fromIndex` is negative, it is used as the offset from * the end of `collection`. * * **Note:** `SameValueZero` comparisons are like strict equality comparisons, * e.g. `===`, except that `NaN` matches `NaN`. See the * [ES spec](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-samevaluezero) * for more details. * * @static * @memberOf _ * @alias contains, include * @category Collection * @param {Array|Object|string} collection The collection to search. * @param {*} target The value to search for. * @param {number} [fromIndex=0] The index to search from. * @returns {boolean} Returns `true` if a matching element is found, else `false`. * @example * * _.includes([1, 2, 3], 1); * // => true * * _.includes([1, 2, 3], 1, 2); * // => false * * _.includes({ 'user': 'fred', 'age': 40 }, 'fred'); * // => true * * _.includes('pebbles', 'eb'); * // => true */ function includes(collection, target, fromIndex) { var length = collection ? collection.length : 0; if (!isLength(length)) { collection = values(collection); length = collection.length; } if (!length) { return false; } if (typeof fromIndex == 'number') { fromIndex = fromIndex < 0 ? nativeMax(length + fromIndex, 0) : (fromIndex || 0); } else { fromIndex = 0; } return (typeof collection == 'string' || !isArray(collection) && isString(collection)) ? (fromIndex < length && collection.indexOf(target, fromIndex) > -1) : (baseIndexOf(collection, target, fromIndex) > -1); } return includes; });