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Is there a standardized method to swap two variables in Python?

... @Catbuilts Constructing the tuple will take up some extra memory (likely more than the 3-variable version of the swap would take up), but since the only things being swapped are memory addresses, it won't be much extra memory in the absolute sense (maybe 24 extra bytes). – Br...
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How to add 30 minutes to a JavaScript Date object?

...ries is a safer bet if you have to do a lot of work with this. Below is a more generic version of this function that I wrote. I'd still recommend using a library, but that may be overkill/impossible for your project. The syntax is modeled after MySQL DATE_ADD function. /** * Adds time to a date. ...
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SQL query to select dates between two dates

... matters in the BETWEEN function. It has to go from oldest on the left and more recent on the right. This is unintuitive as = is a comparative operator in sql and works for both "EmployeeId = 1" or "1 = EmployeeId" in the where clause. – Fi Horan Dec 22 '15 at...
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Why does Javascript getYear() return 108?

...ted in favour of getFullYear() - from quirksmode: To make the matter even more complex, date.getYear() is deprecated nowadays and you should use date.getFullYear(), which, in turn, is not supported by the older browsers. If it works, however, it should always give the full year, ie. 2000 instead of...
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Linux delete file with size 0 [duplicate]

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Clear the cache in JavaScript

...ds some html, and that page has a script that makes a second ajax call for more html to display on the same page, the second request will not have its caching disabled. – J. Schei Jun 29 '17 at 20:08 ...
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What is the $$hashKey added to my JSON.stringify result

...track by» vs «$$hashKey»? (UPD. Ok, I've googled it and «track by» is more preferrable) – artuska Sep 17 '15 at 14:25 ...
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Form inside a form, is that alright? [duplicate]

...With this way, to press the ENTER key does not seams to submit the form anymore. Do you confirm? – Gabriel Oct 4 '19 at 11:07  |  show 1 more ...
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What is fastest children() or find() in jQuery?

... This jsPerf test suggests that find() is faster. I created a more thorough test, and it still looks as though find() outperforms children(). Update: As per tvanfosson's comment, I created another test case with 16 levels of nesting. find() is only slower when finding all possible divs...
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What does @hide mean in the Android source code?

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