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Is it good style to explicitly return in Ruby?
...g my own style guidelines but I'm thinking about releasing my source code, and I'd like it to adhere to any unwritten rules that might exist.
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What does “atomic” mean in programming?
... written using two separate operations: one that writes the first 32 bits, and a second one which writes the last 32 bits. That means that another thread might read the value of foo, and see the intermediate state.
Making the operation atomic consists in using synchronization mechanisms in order t...
Disabling and enabling a html input button
... jquery 1.6.1 changes. As a suggestion, always use the latest jquery files and the prop() method.
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Get distance between two points in canvas
I have canvas drawing tab and want lineWidth to be based on distance between two last mousemove coordinate updates. I will make translation of distance to width myself, I just need to know how to get distance between those points (I already have coordinates of those pointes).
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How can I remove an element from a list?
I have a list and I want to remove a single element from it. How can I do this?
16 Answers
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Why does substring slicing with index out of range work?
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You're correct! 'example'[3:4] and 'example'[3] are fundamentally different, and slicing outside the bounds of a sequence (at least for built-ins) doesn't cause an error.
It might be surprising at first, but it makes sense when you think about it. Indexi...
Cast Object to Generic Type for returning
...y way to use .isArray() inside convertInstanceOfObject() in the someObject and extract the class (as the intArrayType) from it by reflection and then call an internal private method passing those? But even doing this, I must to create an empty array and pass it in the public method, right?
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Jquery insert new row into table at a certain index
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You can use .eq() and .after() like this:
$('#my_table > tbody > tr').eq(i-1).after(html);
The indexes are 0 based, so to be the 4th row, you need i-1, since .eq(3) would be the 4th row, you need to go back to the 3rd row (2) and inse...
How to hide command output in Bash
...gant for the end user. How do I hide the output when Bash is executing commands?
7 Answers
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Disable cross domain web security in Firefox
...-ons (some of which don't work in the latest Firefox or don't work at all) and "you just need to enable support on the server".
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