离开画面时的JavaScript确认提示
window.onbeforeunload = function (evt) {
var message = 'Are you sure you want to leave?';
if (typeof evt == 'undefined') {
evt = window.event;
}
if (evt) {
evt.returnValue = message;
}
return message;
}
onbeforeunload 事件参考地址
http://msdn.microsoft.com/en-us/library/ms536907(VS.85).aspx
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我想使用过ajax的都常见这样的代码:
<a href="javascript:doTest2();void(0);">here</a>
但这儿的void(0)究竟是何含义呢?
Javascript中void是一个操作符,该操作符指定要计算一个表达式但是不返回值。
void 操作符用法格式如下:
1. javascript:void (expression)
2. javascript:void expression
expr ......
简介
1st JavaScript Editor 是一款强大的JavaScript开发、校验和调试工具,它简单易用,不论你是初学者或者是专业的开发人士,都可以轻松上手!同时它又是完美的Ajax (Asynchronous JavaScript and XML),CSS, HTML, DOM DHTML开发工具!
Beside rich possibilities of editing scripts (JavaScript, ......
<html>
<head>
<mce:script type = "text/javascript"><!--
function changetext()
{
var x = document.getElementById("list");
for (var i = 0;i < x.length;i++ )
{
if (x.options[i].selected)
{
document.getElemen ......
IE event.keyCode
keycode 8 = BackSpace BackSpace
keycode 9 = Tab Tab
keycode 12 = Clear
keycode 13 = Enter
keycode &nb ......
最近太忙,没有时间总结工作内容了,忙里偷闲吧,共享下我的JavaScript MD5 脚本
var hex_chr = "0123456789abcdef";
function rhex(num)
{
str = "";
for(j = 0; j <= 3; j++)
str += hex_chr.charAt((num >> (j * 8 + 4)) & 0x0F) +
hex_chr.charAt((num >> (j * 8)) & 0x0F);
re ......