ut2/lib/pick.js

一个现代 JavaScript 实用工具库。[点击查看在线文档]。

'use strict';

var castArray = require('./castArray.js');
var isObject = require('./isObject.js');

function pick(object, fields) {
    if (fields === void 0) { fields = []; }
    var result = {};
    if (!isObject(object)) {
        return result;
    }
    var fieldArr = castArray(fields);
    fieldArr.forEach(function (field) {
        if (field in object) {
            result[field] = object[field];
        }
    });
    return result;
}

module.exports = pick;