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background:none vs background:transparent what is the difference?
Is there a difference between these two CSS properties:
3 Answers
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Custom events in jQuery?
... etc, but I'm building a tiny javascript library/plugin to handle some preview functionality.
6 Answers
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How does the SQL injection from the “Bobby Tables” XKCD comic work?
...oncatenated with the rest of the query, the result is now actually two queries separated by the statement terminator (semicolon). The second query has been injected into the first. When the code executes this query against the database, it will look like this
INSERT INTO Students VALUES ('Robert'...
Set “this” variable easily?
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FYI bind is apparently available in IE9+, FF4+, Safari 5.1.4+ and Chrome 7+ (source). You can also call bind directly on an anonymous function: var myFunction = function(){ /* this = something */ }.bind(something);
– Adam
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Chrome Dev Tools - “Size” vs “Content”
When viewing information about stylesheets in the Network tab of Chrome's dev tools, one column specifies both "size" and "content":
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Why does Convert.ToString(null) return a different value if you cast null?
...ing(object o);
Convert.ToString(string s);
The C# compiler essentially tries to pick the most specific overload which will work with the input. A null value is convertible to any reference type. In this case string is more specific than object and hence it will be picked as the winner.
In the...
What is the use of join() in Python threading?
...ed, I'm writing code for a DrinkBot, and I need threading to run the ingredient pumps concurrently rather than sequentially -- less time to wait for each drink.)
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Git reset --hard and push to remote repository
...ous commit, I'll use git revert HEAD~1
– Maksim Dmitriev
Apr 3 '13 at 9:10
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What's the difference between a single precision and double precision floating point operation?
...floating-point values.
Most computers use a standard format known as the IEEE floating-point format.
The IEEE double-precision format actually has more than twice as many bits of precision as the single-precision format, as well as a much greater range.
From the IEEE standard for floating poin...
What is the difference between user variables and system variables?
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Right-click My Computer and go to Properties->Advanced->Environmental Variables...
What's above are user variables, and below are system variables. The elements are combined when creating the environment for an application. System variables are shared for all...