大约有 47,000 项符合查询结果（耗时：0.0648秒） [XML]
Best way to create unique token in Rails?
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Yeah, that's not bad. I'm usually looking for much shorter strings, to use as part of an URL.
– Slick23
Jan 3 '12 at 16:46
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A CSS selector to get last visible div
...uery and those tags were added by another answerer. 1nfected - do you actually want jQuery? If so, please actually put that in your question. Otherwise, you should accept this answer instead.
– jep
Oct 11 '13 at 15:11
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Sell me on const correctness
...ll, using const is good practice because...
It protects you from accidentally changing variables that aren't intended be changed,
It protects you from making accidental variable assignments, and
The compiler can optimize it. For instance, you are protected from
if( x = y ) // whoops, meant if(...
What is the worst real-world macros/pre-processor abuse you've ever come across?
... I think programmers (myself included) would be a lot more fit if we all did 10 pushups every time a compiler found an error in our code. This might also reduce the occurrence of testing by compilation.
– MikeyB
Jun 25 '09 at 19:52
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Convert timedelta to total seconds
...ime.datetime.fromtimestamp(time.mktime(time.gmtime())) expression.
(1) If all you need is the difference between two instants in seconds, the very simple time.time() does the job.
(2) If you are using those timestamps for other purposes, you need to consider what you are doing, because the result ...
Best practices for reducing Garbage Collector activity in Javascript
I have a fairly complex Javascript app, which has a main loop that is called 60 times per second. There seems to be a lot of garbage collection going on (based on the 'sawtooth' output from the Memory timeline in the Chrome dev tools) - and this often impacts the performance of the application.
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How to visualize an XML schema? [closed]
I have made an XML Schema - all the code basically - and was wondering if there is a way that the code can generate something like this:
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Calculating days between two dates with Java
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Well, basically this is the same as current best answer, though this answer provides it as a function.
– Andrew T.
May 12 '15 at 7:52
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Is it not possible to stringify an Error using JSON.stringify?
...ying Error.prototype, while toJSON() may not be defined for Errors specifically, the method is still standardized for objects in general (ref: step 3). So, the risk of collisions or conflicts is minimal.
Though, to still avoid it completely, JSON.stringify()'s replacer parameter can be used instead...
Difference between 'self' and 'total' in Chrome CPU Profile of JS
...otal is how much time was spent in that function, and in the functions it called.
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