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[yaffs-website] / node_modules / grunt-legacy-log / node_modules / lodash / array / findIndex.js

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+var createFindIndex = require('../internal/createFindIndex');
+
+/**
+ * This method is like `_.find` except that it returns the index of the first
+ * element `predicate` returns truthy for instead of the element itself.
+ *
+ * If a property name is provided for `predicate` the created `_.property`
+ * style callback returns the property value of the given element.
+ *
+ * If a value is also provided for `thisArg` the created `_.matchesProperty`
+ * style callback returns `true` for elements that have a matching property
+ * value, else `false`.
+ *
+ * If an object is provided for `predicate` the created `_.matches` style
+ * callback returns `true` for elements that have the properties of the given
+ * object, else `false`.
+ *
+ * @static
+ * @memberOf _
+ * @category Array
+ * @param {Array} array The array to search.
+ * @param {Function|Object|string} [predicate=_.identity] The function invoked
+ *  per iteration.
+ * @param {*} [thisArg] The `this` binding of `predicate`.
+ * @returns {number} Returns the index of the found element, else `-1`.
+ * @example
+ *
+ * var users = [
+ *   { 'user': 'barney',  'active': false },
+ *   { 'user': 'fred',    'active': false },
+ *   { 'user': 'pebbles', 'active': true }
+ * ];
+ *
+ * _.findIndex(users, function(chr) {
+ *   return chr.user == 'barney';
+ * });
+ * // => 0
+ *
+ * // using the `_.matches` callback shorthand
+ * _.findIndex(users, { 'user': 'fred', 'active': false });
+ * // => 1
+ *
+ * // using the `_.matchesProperty` callback shorthand
+ * _.findIndex(users, 'active', false);
+ * // => 0
+ *
+ * // using the `_.property` callback shorthand
+ * _.findIndex(users, 'active');
+ * // => 2
+ */
+var findIndex = createFindIndex();
+
+module.exports = findIndex;