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37 lines
1.2 KiB
37 lines
1.2 KiB
var baseClone = require('./_baseClone'),
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baseIteratee = require('./_baseIteratee');
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/**
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* Creates a function that invokes `func` with the arguments of the created
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* function. If `func` is a property name the created callback returns the
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* property value for a given element. If `func` is an object the created
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* callback returns `true` for elements that contain the equivalent object properties, otherwise it returns `false`.
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*
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* @static
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* @memberOf _
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* @category Util
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* @param {*} [func=_.identity] The value to convert to a callback.
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* @returns {Function} Returns the callback.
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* @example
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*
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* var users = [
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* { 'user': 'barney', 'age': 36 },
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* { 'user': 'fred', 'age': 40 }
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* ];
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*
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* // Create custom iteratee shorthands.
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* _.iteratee = _.wrap(_.iteratee, function(callback, func) {
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* var p = /^(\S+)\s*([<>])\s*(\S+)$/.exec(func);
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* return !p ? callback(func) : function(object) {
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* return (p[2] == '>' ? object[p[1]] > p[3] : object[p[1]] < p[3]);
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* };
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* });
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*
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* _.filter(users, 'age > 36');
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* // => [{ 'user': 'fred', 'age': 40 }]
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*/
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function iteratee(func) {
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return baseIteratee(typeof func == 'function' ? func : baseClone(func, true));
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}
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module.exports = iteratee;
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