ut2/lib/filter.js

一个现代 JavaScript 实用工具库。[点击查看在线文档]。

'use strict';

var forEach = require('./forEach.js');
var identity = require('./identity.js');

var filter = function (array, predicate) {
    if (predicate === void 0) { predicate = identity; }
    var results = [];
    forEach(array, function (item, index) {
        if (predicate(item, index, array)) {
            results.push(item);
        }
    });
    return results;
};

module.exports = filter;