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How do cache lines work?

I understand that the processor brings data into the cache via cache lines, which - for instance, on my Atom processor - brings in about 64 bytes at a time, whatever the size of the actual data being read. ...
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How to check if multiple array keys exists

... If you only have 2 keys to check (like in the original question), it's probably easy enough to just call array_key_exists() twice to check if the keys exists. if (array_key_exists("story", $arr) && array_key_exists("message", $arr)) { // Both keys exist. } However this obviously does...
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CSS3 selector :first-of-type with class name?

Is it possible to use the CSS3 selector :first-of-type to select the first element with a given class name? I haven't been successful with my test so I'm thinking it's not? ...
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How do I initialize a TypeScript object with a JSON object

I receive a JSON object from an AJAX call to a REST server. This object has property names that match my TypeScript class (this is a follow-on to this question ). ...
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How to compare files from two different branches?

I have a script that works fine in one branch and is broken in another. I want to look at the two versions side-by-side and see what's different. Are there any ways to do this? ...
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Reference: Comparing PHP's print and echo

What is the difference between PHP's print and echo ? 1 Answer 1 ...
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I want to delete all bin and obj folders to force all projects to rebuild everything

...iple projects, and I want to recursively delete all folders with the name 'bin' or 'obj' that way I am sure that all projects will rebuild everything (sometimes it's the only way to force Visual Studio to forget all about previous builds). ...
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Set transparent background using ImageMagick and commandline prompt

Suppose you have any image (PNG or JPG). This image has a white background and I need to make this background transparent. ...
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Django optional url parameters

... edited Apr 16 '19 at 21:45 l0b0 45.4k1919 gold badges106106 silver badges174174 bronze badges answered Jan 16 '13 at 4:03 ...
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How to check if click event is already bound - JQuery

I am binding a click event with a button: 13 Answers 13 ...