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Do DOM tree elements with ids become global variables?
Working on an idea for a simple HTMLElement wrapper I stumbled upon the following for Internet Explorer and Chrome :
5 An...
How do I add a tool tip to a span element?
In the following code, I want a tool-tip to come up when the user hovers the span, how do I do that? I don't want to use any links.
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A CORS POST request works from plain JavaScript, but why not with jQuery?
...t if you want to add custom headers or allow the use of credentials (username, password, or cookies, etc), read on.
I think I found the answer! (4 hours and a lot of cursing later)
//This does not work!!
Access-Control-Allow-Headers: *
You need to manually specify all the headers you will acce...
Bootstrap 3 breakpoints and media queries
On the Bootstrap 3 media queries documentation it says:
10 Answers
10
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What is the best way to create constants in Objective-C
...a good way of doing things? Also, I've done my research and found several methods to create constants, but I don't know which one to use:
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Is there a benefit to defining a class inside another class in Python?
... OOP concept here is composition. However, composition doesn't necessarily mean nesting, right?
5 Answers
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Why does PHP 5.2+ disallow abstract static class methods?
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static methods belong to the class that declared them. When extending the class, you may create a static method of the same name, but you are not in fact implementing a static abstract method.
Same goes for extending any class wit...
When should I write the keyword 'inline' for a function/method?
When should I write the keyword inline for a function/method in C++?
15 Answers
15
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Deep null checking, is there a better way?
...w planned for the next Roslyn compiler release. Note that there is still some debate over the exact syntactic and semantic analysis of the operator.
Update (July 2015): Visual Studio 2015 has been released and ships with a C# compiler that supports the null-conditional operators ?. and ?[].
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In Markdown, what is the best way to link to a fragment of a page, i.e. #some_id?
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See this answer.
In summary make a destination with
<a name="sometext"></a>
inserted anywhere in your markdown markup (for example in a header:
## heading<a name="headin"></a>
and link to it using the markdown linkage:
[This is the link text](#headin)
o...