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How can I check if a checkbox is checked?
...ked is boolean property so you can directly use it in IF condition:-
<script type="text/javascript">
function validate() {
if (document.getElementById('remember').checked) {
alert("checked");
} else {
alert("You didn't check it! Let me check it for...
What is the difference between typeof and instanceof and when should one be used vs. the other?
...
A good reason to use typeof is if the variable may be undefined.
alert(typeof undefinedVariable); // alerts the string "undefined"
alert(undefinedVariable instanceof Object); // throws an exception
A good reason to use instanceof is if the variable may be null.
var myNullVar = null;
ale...
Use ASP.NET MVC validation with jquery ajax?
...lientValidationEnabled" value="true"/>
<add key="UnobtrusiveJavaScriptEnabled" value="true"/>
</appSettings>
When you build up your view, you would define things like this:
@Html.LabelFor(Model => Model.EditPostViewModel.Title, true)
@Html.TextBoxFor(Model => Model.Edit...
JavaScript equivalent of PHP’s die
Is there something like "die" in JavaScript? I've tried with "break", but doesn't work :)
14 Answers
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关于我们 · App Inventor 2 中文网，少儿编程陪伴者
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PHP学习必看的一些书 - IT书籍推荐 - 清泛网 - 专注C/C++及内核技术
...错的入门书。
《Linux 101 Hacks》常用命令手册
《UNIX Shell Scripting》写脚本的参考书(选看)
其他
《精益开发实战：用看板管理大型项目》 敏捷开发指导
《重来：更为简单有效的商业思维》 值得一看
《程序员的自我修养》...
PHP学习必看的一些书 - PHP - 清泛IT论坛，有思想、有深度
...不错的入门书。《Linux 101 Hacks》常用命令手册《UNIX Shell Scripting》写脚本的参考书(选看)
其他《精益开发实战：用看板管理大型项目》 敏捷开发指导《重来：更为简单有效的商业思维》 值得一看《程序员的自我修养》别被名字...
Global variables in Javascript across multiple files
A bunch of my JavaScript code is in an external file called helpers.js. Inside the HTML that calls this JavaScript code I find myself in need of knowing if a certain function from helpers.js has been called.
...
Twitter Bootstrap alert message close and open again
...uery's .hide() method instead.
The fix-it-quick method:
Using inline javascript to hide the element onclick like this:
<div class="alert" style="display: none">
<a class="close" onclick="$('.alert').hide()">×</a>
<strong>Warning!</strong> Best check yo se...
Web安全测试之XSS - 更多技术 - 清泛网 - 专注C/C++及内核技术
Web安全测试之XSSXSS 全称(Cross Site Scripting) 跨站脚本攻击， 是Web程序中最常见的漏洞。指攻击者在网页中嵌入客户端脚本(例如JavaScript), 当用...XSS 全称(Cross Site Scripting) 跨站脚本攻击， 是Web程序中最常见的漏洞。指攻击者在网页...