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Diagnosing Memory Leaks - Allowed memory size of # bytes exhausted
... framework, you'll have a lot of code to trawl through to find it, I'm afraid. The simplest instrument is to selectively place calls to memory_get_usage and narrow it down to where the code leaks. You can also use xdebug to create a trace of the code. Run the code with execution traces and show_mem_...
Multiline strings in JSON
... control characters. As an additional example to make it more clear, consider that "\\" is an escape sequence for backslash, as opposed to a literal backslash. The JSON grammar explicitly excludes control characters (cf. the "char" definition), and instead provides for their representation via es...
Create empty queryset by default in django form fields
...ike so: edit_form.fields["asset"].queryset = Asset.objects.filter(location_id=location_id)
– radtek
May 13 '14 at 16:49
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How to send a message to a particular client with socket.io
...er. So if user connects from another browser - old connection will be overriden.
– Vladimir Kurijov
Dec 5 '13 at 6:03
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实现一个简单的服务端推方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...便主动通知Nginx，并把相应的标识（比如一个自增的整数ID）保存在Nginx共享内存中，接下来，Nginx不会再去轮询数据库，而是改为轮询本地的共享内存，通过比对标识来判断是否有新消息，如果有便给客户端发出响应。
注：服...
Maximum Year in Expiry Date of Credit Card
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There is no official guideline as the credit card issuers can choose each when the cards they issue will expire. In fact they have been issuing cards for longer and longer periods of time. If you're trying to determine how far out into the future y...
How to quit android application programmatically
I Found some codes for quit an Android application programatically. By calling any one of the following code in onDestroy() will it quit application entirely?
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How do I programmatically click a link with javascript?
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document.getElementById('yourLinkID').click();
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When to use Vanilla JavaScript vs. jQuery?
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this.id (as you know)
this.value (on most input types. only issues I know are IE when a <select> doesn't have value properties set on its <option> elements, or radio inputs in Safari.)
this.className to get or set an e...
How to resolve the C:\fakepath?
...to know your local machine's filesystem. It would be nice if all browsers did this.
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