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2018.8.17 several common global functions for JavaScript

Source: Internet
Author: User
Tags string to json
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Common global functions for JavaScript 
 <!doctype html>
parseInt(str); // 解析正整数parseFloat(str); // 解析小数setTimeout(function() {}, 3000); // 延迟3秒调用setInterval(function() {}, 3000); // 每隔3秒调用一次clearTimeout(id); // 清除延迟调用，id是setTimeout函数返回值clearInterval(id); // 清除定时器，id是setInterval函数返回值Math // 与数学相关的工具isNan(num) // 判断是否是一个非数字JSON.parse(str); // 解析一个json字符串JSON.stringify(json); // 序列化一个json对象eval(code); // 把一个字符串当做js代码来执行

function calls from JavaScript

function a(A){return A；}function b(B){//怎么样将A传到此处？A代表一个textbox;A.style.color=B;}

2018.8.17 several common global functions for JavaScript

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Related Keywords:
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