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How to find first element of array matching a boolean condition in JavaScript?
...swer.
Array.prototype.filter(fn)[0] makes for a great one-liner but is the least efficient, because you throw away N - 1 elements just to get what you need.
Traditional search methods in JavaScript are characterized by returning the index of the found element instead of the element itself or -1. T...
force browsers to get latest js and css files in asp.net application
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Using a global version / revision number has at least one drawback: publishing a website update invalidates browser caches for all .js and .css files, not just the ones that changed. This probably does not matter in the majority of applications, but I mention it for compl...
Visual C++: How to disable specific linker warnings?
...he thread disappears on the msdn forums)
You can't disable the warning (at least under VS2010) because it is on the list of the warnings that can't be disabled (so /wd4099 will not work), but what you can do instead is patch link.exe (usually C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\bi...
Python timedelta in years
...uary 2009, and the date-of-birth to 29th February 2008 it returns Zero- at least for me; not 1 as you suggest (Python 2.5.2). There's no need to rude Mr Machin. Exactly what two dates are you having trouble with?
– John Mee
Feb 8 '10 at 6:16
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Python time measure function
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First and foremost, I highly suggest using a profiler or atleast use timeit.
However if you wanted to write your own timing method strictly to learn, here is somewhere to get started using a decorator.
Python 2:
def timing(f):
def wrap(*args):
time1 = time.time()
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how to change default python version?
...you are confused about how to start the latest version of python, it is at least the case on Linux that python3 leaves your python2 installation intact (due to the above compatibility reasons); thus you can start python3 with the python3 command.
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Check if a JavaScript string is a URL
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This isn't the case (in Chrome 48 at least). If the url passed to a.href is invalid, parser.host returns the hostname of the page you're currently on, not the expected false.
– Sam Beckham
Feb 25 '16 at 15:37
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Getting parts of a URL (Regex)
...g=&king=kong@kong.com#foobar/bing/bo@ng?bang');
since (in Chrome, at least) it parses to:
{
"hash": "#foobar/bing/bo@ng?bang",
"search": "?foo=bar&bingobang=&king=kong@kong.com",
"pathname": "/path/wah@t/foo.js",
"port": "890",
"hostname": "example.com",
"host": "example.c...
How do I count the number of occurrences of a char in a String?
...he ones above, and the order is fastest first which makes lookup tricky at least. Nice answer otherways!
– Maarten Bodewes
Jun 1 '17 at 11:05
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How to deal with floating point number precision in JavaScript?
...s will round up 0.999...repeating and is accurate to plus/minus one on the least significant digit.
Note: When dealing with 32 or 64 bit floats, you should use toPrecision(7) and toPrecision(15) for best results. See this question for info as to why.
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