JavaScript中confirm,alert,prompt的用法
本文简要介绍JavaScript中confirm,alert,prompt的用法,希望大家学习过程中能得到一些启发。
window.confirm 参数就只有一个。显示提示框的信息。按确定,返回true；按取消返回false。
< SCRIPT> var bln = window.confirm("确定吗?"); alert(bln) < /SCRIPT> window.alert参数，只有一个，显示警告框的信息；无返回值。
< SCRIPT> window.alert("确定。") window.prompt参数,有两个，第一个参数，显示提示输入框的信息。第二个参数,用于显示输入框的默认值。返回，用户输入的值。
< SCRIPT> var str = window.prompt("请输入密码","password") alert(str); < /SCRIPT>
相关文档：
第八章 Programming Practices 编程实践
Every programming language has pain points and inefficient patterns that develop over time. The appearance of these traits occurs as people migrate to the language and start pushing its boundaries. Since 2005, when the term "Ajax" ......
Firebug
Firefox is a popular browser with developers, partially due to the Firebug addon (available at http://www.getfirebug.com/), which was developed initially by Joe Hewitt and is now maintained by the Mozilla Foundation. This tool has increased the productivity of web develop ......
新中……
1、数据类型验证问题
Asp.Net虽然有验证控件，但是有些复杂的验证还是得传到服务器上进行，用js速度和性能都比较好
<script>
//检查是否为任意数（实数）
function isNumeric(strNumber) {
var newPar=/^(-|\+)?\d+(\.\d+)?$/
alert(newPar.test(strNumber)); }
//� ......
在javascript中得到当前窗口的高和宽
<body><SCRIPT LANGUAGE="JavaScript">
var s = "";
s += "\r\n网页可见区域宽："+ document.body.clientWidth;
s += "\r\n网页可见区域高："+ document.body.clien ......
The jLayout JavaScript library provides layout algorithms for laying out components. A component is an abstraction; it can be implemented in many ways, for example as items in a HTML5 Canvas drawing or as HTML elements. The jLayout library allows you to focus on drawing the individual components i ......
