大约有 40,000 项符合查询结果（耗时：0.0378秒） [XML]
Should we pass a shared_ptr by reference or by value?
... slightly slower than plain old increment/decrement code, but is needed in order to be thread safe. Beyond that, the two methods are the same for most intents and purposes.
– Evan Teran
Jul 29 '10 at 2:02
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How might I find the largest number contained in a JavaScript array?
... and getting the 0th value is by far the worst method (and it modifies the order of your array, which may not be desirable). For the others, the difference is negligible unless you're talking millions of indices.
Average results of five runs with a 100,000-index array of random numbers:
reduce took...
Use ffmpeg to add text subtitles [closed]
...ext outfile.mp4
-vf subtitles=infile.srt will not work with -c copy
The order of -c copy -c:s mov_text is important. You are telling FFmpeg:
Video: copy, Audio: copy, Subtitle: copy
Subtitle: mov_text
If you reverse them, you are telling FFmpeg:
Subtitle: mov_text
Video: copy, Audio: copy, Sub...
MVC pattern on Android
...code.
This is particularly useful when you use Mono to share the model in order to develop cross-platform applications.
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Where are my postgres *.conf files?
...tart)
# - When to Log -
#client_min_messages = notice # values in order of decreasing detail:
# debug5
# debug4
# debug3
# debug2
# debug1
# log
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Jquery If radio button is checked
...ince I was editing to include Snippets as well as the JS Fiddle links), in order to wrap the <input /> elements with <label>s - allow for clicking the text to update the relevant <input /> - and changing the means of creating the content to append:
var appended = $('<div /&...
Adding elements to object
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Your element is not an array, however your cart needs to be an array in order to support many element objects. Code example:
var element = {}, cart = [];
element.id = id;
element.quantity = quantity;
cart.push(element);
If you want cart to be an array of objects in the form { element: { id: 10...
How to get folder path from file path with CMD
...y helpful if the arguments can be passed into the file in an indeterminate order or the path isn't passed into the file at all.
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How can I multiply all items in a list together with Python?
...ator.mul took an average of .009s/1000 repetitions, making operator.mul an order of magnitude faster.
– whereswalden
Nov 1 '14 at 18:49
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Non greedy (reluctant) regex matching in sed?
...ell) which means it goes with . until a match is found for ([0-9]+).*. But order is important too.
Since global flag is set, engine tries to continue matching character by character up to the end of input string or our target. As soon as the first and only capturing group of left side of alterna...