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- var baseClone = require('./_baseClone'),
- baseIteratee = require('./_baseIteratee');
- /** Used to compose bitmasks for cloning. */
- var CLONE_DEEP_FLAG = 1;
- /**
- * Creates a function that invokes `func` with the arguments of the created
- * function. If `func` is a property name, the created function returns the
- * property value for a given element. If `func` is an array or object, the
- * created function returns `true` for elements that contain the equivalent
- * source properties, otherwise it returns `false`.
- *
- * @static
- * @since 4.0.0
- * @memberOf _
- * @category Util
- * @param {*} [func=_.identity] The value to convert to a callback.
- * @returns {Function} Returns the callback.
- * @example
- *
- * var users = [
- * { 'user': 'barney', 'age': 36, 'active': true },
- * { 'user': 'fred', 'age': 40, 'active': false }
- * ];
- *
- * // The `_.matches` iteratee shorthand.
- * _.filter(users, _.iteratee({ 'user': 'barney', 'active': true }));
- * // => [{ 'user': 'barney', 'age': 36, 'active': true }]
- *
- * // The `_.matchesProperty` iteratee shorthand.
- * _.filter(users, _.iteratee(['user', 'fred']));
- * // => [{ 'user': 'fred', 'age': 40 }]
- *
- * // The `_.property` iteratee shorthand.
- * _.map(users, _.iteratee('user'));
- * // => ['barney', 'fred']
- *
- * // Create custom iteratee shorthands.
- * _.iteratee = _.wrap(_.iteratee, function(iteratee, func) {
- * return !_.isRegExp(func) ? iteratee(func) : function(string) {
- * return func.test(string);
- * };
- * });
- *
- * _.filter(['abc', 'def'], /ef/);
- * // => ['def']
- */
- function iteratee(func) {
- return baseIteratee(typeof func == 'function' ? func : baseClone(func, CLONE_DEEP_FLAG));
- }
- module.exports = iteratee;
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