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Code Golf - π day
Guidelines for code-golf on SO
26 Answers
26
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What's the better (cleaner) way to ignore output in PowerShell? [closed]
... to [Void], but that may not be as understandable when glancing at code or for new users.
I guess I slightly prefer redirecting output to $null.
Do-Something > $null
Edit
After stej's comment again, I decided to do some more tests with pipelines to better isolate the overhead of trashing the...
PHP check whether property exists in object or class
...wer since it answers the explicit answer very precise. isset is not useful for testing existence of a property in an object.
– Christopher Bonitz
Feb 6 '17 at 7:53
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How to parse float with two decimal places in javascript?
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If you need performance (like in games):
Math.round(number * 100) / 100
It's about 100 times as fast as parseFloat(number.toFixed(2))
http://jsperf.com/parsefloat-tofixed-vs-math-round
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Django queries - id vs pk
...lash with the id() function (everywhere except variable names). The reason for this is that pk is a property which is 7 times slower than id since it takes time looking up pk attribute name in meta.
%timeit obj.id
46 ns ± 0.187 ns per loop (mean ± std. dev. of 7 runs, 10000000 loops each)
%timeit...
How to print a stack trace in Node.js?
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+1 for also showing new Error().stack, which works in cases where you don't want to involve the console.
– Evgeniy Berezovsky
Jul 31 '12 at 4:19
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How to convert a String to its equivalent LINQ Expression Tree?
...ilar (although I don't think I have the source) in my train commute just before xmas...
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How to hide “Showing 1 of N Entries” with the dataTables.js library
...hat is when using the javascript library dataTables? I think I was looking for something along these lines...
5 Answers
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How do Python's any and all functions work?
...y know the result. The advantage is, entire iterable need not be consumed. For example,
>>> multiples_of_6 = (not (i % 6) for i in range(1, 10))
>>> any(multiples_of_6)
True
>>> list(multiples_of_6)
[False, False, False]
Here, (not (i % 6) for i in range(1, 10)) is a ge...
How can I find where I will be redirected using cURL?
...ing the curl... Try:
curl_exec($ch);
...after setting the options, and before the curl_getinfo() call.
EDIT: If you just want to find out where a page redirects to, I'd use the advice here, and just use Curl to grab the headers and extract the Location: header from them:
$ch = curl_init();
curl_...