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MediaHelper 媒体助手扩展：从媒体文件提取元数据和专辑封面 · App Inventor 2 中文网
...tor 2 中文网 MIT同步更新的中文本土化 积木式在线App开发平台！ © 2023 - document.write(new Date().getFullYear()); 跟着学（上海）教育科技有限公司 版权所有，未经书面许可，不得转载或使用 《隐私政策...
Adding a simple UIAlertView
What is some starter code I could use to make a simple UIAlertView with one "OK" button on it?
10 Answers
...
Why am I getting an OPTIONS request instead of a GET request?
...function(data) {
alert(data);
});
It's entirely up to the receiving script to make use of that argument (which doesn't have to be called "jsoncallback"), so in this case the function will never be called. But, since you stated you just want the script at metaward.com to execute, that would m...
How to calculate date difference in JavaScript?
...kizebear—tested in IE, Firefox and Safari, works fine. It uses basic ECMAScript that I'd expect to work in any browser, what doesn't work for you?
– RobG
May 17 '13 at 5:27
...
Naming “class” and “id” HTML attributes - dashes vs. underlines [closed]
...
Use Hyphens to ensure isolation between your HTML and JavaScript.
Why? see below.
Hyphens are valid to use in CSS and HTML but not for JavaScript Objects.
A lot of browsers register HTML Ids as global objects on the window/document object, in big projects, this can become a real ...
GestureDetect 手势检测扩展：识别滑动、点击和长按手势 · App Inventor 2 中文网
...无特殊权限要求
致谢
特别感谢以下开发者对扩展开发的支持：
Mohamed_Tamer - 技术指导
ADDYLIN - 开发支持
原文链接
原版文档：
MIT App Inventor Community - GestureDetect 扩展发布帖
MIT App Inven...
Python - doctest vs. unittest [closed]
...s a bioinformatician, and most of the code I write is "one time, one task" scripts, code that will be run only once or twice and that execute a single specific task.
In this situation, writing big unittests may be overkill, and doctests are an useful compromise. They are quicker to write, and since...
How can I view array structure in JavaScript with alert()?
How can I view the structure of an array in JavaScript using alert() ?
11 Answers
11
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How do I hide an element on a click event anywhere outside of the element?
...t</p>
<input type="file" />
</div>
<script src="jquery.js" type="text/javascript"></script>
<script type="text/javascript">
var box = $('#box');
var link = $('#link');
link.click(function() {
box.show(); ...
Get value when selected ng-option changes
...ed_name=(options|filter:{id:selected_id})[0].name">
</select>
<script>
angular.module("app",[])
.controller("ctrl",['$scope',function($scope){
$scope.options = [
{id:1, name:'Starbuck'},
{id:2, name:'Appolo'},
{id:3, name:'Saul Tigh'},
{id:4, name:'Adam...