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How to check if a variable is not null?
... executed if myVar is not null.. it will be executed if myVar is undefined or false or 0 or NaN or anything else..
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What's the “Content-Length” field in HTTP header?
...e of the
entity-body, in decimal number of OCTETs, sent to the recipient or, in
the case of the HEAD method, the size of the entity-body that would
have been sent had the request been a GET.
It doesn't matter what the content-type is.
Extension at post below.
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Understanding spring @Configuration class
...ing Spring @Autowired usage I wanted to create a complete knowledge base for the other option of spring wiring, the @Configuration class.
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What is the difference between id and class in CSS, and when should I use them? [duplicate]
...re I gave an id to the div element and it's applying the relevant CSS for it.
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Determine if the device is a smartphone or tablet? [duplicate]
I would like to get info about a device to see if it's a smartphone or tablet. How can I do it?
9 Answers
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How can I view the source code for a function?
I want to look at the source code for a function to see how it works. I know I can print a function by typing its name at the prompt:
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change cursor to finger pointer
... I don't know that I need to insert into the "onmouseover" so that the cursor will change to finger pointer like a regular link:
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Can I use non existing CSS classes?
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"CSS class" is a misnomer; class is an attribute (or a property, in terms of scripting) that you assign to HTML elements. In other words, you declare classes in HTML, not CSS, so in your case the "target" class does in fact exist on those specific elements, and your markup i...
WPF global exception handler [duplicate]
...ppDomain.UnhandledException event
EDIT: actually, this event is probably more adequate: Application.DispatcherUnhandledException
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Should I use `import os.path` or `import os`?
According to the official documentation , os.path is a module. Thus, what is the preferred way of importing it?
6 Answer...