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How to do something before on submit? [closed]
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Assuming you have a form like this:
<form id="myForm" action="foo.php" method="post">
<input type="text" value="" />
<input type="submit" value="submit form" />
</form>
You can attach a onsubmit-event with jQuery like this:
$('#myForm').submit(function() {
a...
For a boolean field, what is the naming convention for its getter/setter?
...e section of Sun's code conventions where boolean getter names are specifically covered? I could not find it.
– Konstantin Pelepelin
Mar 29 '17 at 17:36
4
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How do you delete all text above a certain line
How do you delete all text above a certain line. For deletion below a line I use "d shift g"
5 Answers
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Is it feasible to do (serious) web development in Lisp? [closed]
...e almost any kind of application in almost any programming language, especially in such a powerful one as Lisp (be it Scheme or Common Lisp). But is it practical to use it for web development? If so, what should be a good starting point? Where can be found the proper resources (tools, libraries, doc...
Why is debugging better in an IDE? [closed]
...hat an IDE debugger will give you over trace messages in code:
View the call stack at any point in time, giving you a context for your current stack frame.
Step into libraries that you are not able to re-compile for the purposes of adding traces (assuming you have access to the debug symbols)
Chan...
IPN vs PDT in Paypal
...n't happen. The application I wrote handles the PDT and IPN almost identically (the backend part is the same) and that code acquires a per-web-user lock in the database, so that if the same user tries to submit the exact same payment multiple times it can only be processed once. Once processed the...
How big can a user agent string get?
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HTTP specification does not limit length of headers at all.
However web-servers do limit header size they accept, throwing 413 Entity Too Large if it exceeds.
Depending on web-server and their settings these limits vary from 4KB to 64KB (total for all headers).
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通信连接组件 · App Inventor 2 中文网
... 调用百度地图的uri参考地址：https://lbsyun.baidu.com/index.php?title=uri/api/web
打开系统照相机（比照相机组件打开的界面会丰富一些）
Action: android.media.action.STILL_IMAGE_CAMERA
可选取多个文件（图片、音频、视频...
Can you use a trailing comma in a JSON object?
When manually generating a JSON object or array, it's often easier to leave a trailing comma on the last item in the object or array. For example, code to output from an array of strings might look like (in a C++ like pseudocode):
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How to make/get a multi size .ico file? [closed]
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I had all the images already, delivered by the artist for mac. All I had to do was open one of them in Gimp, and the choose "Open as layers.." on the remaining ones. All layers are automatically created in the correct size, export ...