build_in_function.js

/**
 * Created by betty on 8/5/20.
 */
"use strict";

// 执行一段string, string为js代码
eval("console.log('aaa')")
// par
console.log(parseInt("100", 10))
//
console.log(parseFloat("100.1"))
// 
let url = decodeURI("http://www.google.com")
console.log(url)