大约有 40,000 项符合查询结果（耗时：0.0432秒） [XML]
Is a LINQ statement faster than a 'foreach' loop?
...ter than a flat foreach, but most likely you wouldn't have done a blanket "select * from foo" anyway, so that isn't necessarily a fair comparison.
Re PLINQ; parallelism may reduce the elapsed time, but the total CPU time will usually increase a little due to the overheads of thread management etc.
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What is the difference between pluck and collect in Rails?
...ds with Rails 4, still use pluck
if you need some fields with Rails 3, use selectand collect
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How can I convince IE to simply display application/json rather than offer to download it?
... Notepad.
To do this, create or find a .json file, right mouse click, and select "Open With" or "Choose Default Program."
This might come in handy if you by chance want to use Internet Explorer but your IT company wont let you edit your registry. Otherwise, I recommend the above answers.
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SVN remains in conflict?
...ve any changes perform the following
a. Right click and do a 'Revert'
b. Select all the files
c. Then update the directory again
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How to output only captured groups with sed?
...only alternative solution is to use a character class: '[[:digit:]]`.
The selected answer use such "character classes" to build a solution:
$ str='This is a sample 123 text and some 987 numbers'
$ echo "$str" | sed -rn 's/[^[:digit:]]*([[:digit:]]+)[^[:digit:]]+([[:digit:]]+)[^[:digit:]]*/\1 \2/p'...
Disabled href tag
...doesn't have a disabled attribute, that's just for <input>s (and <select>s and <textarea>s).
To "disable" a link, you can remove its href attribute, or add a click handler that returns false.
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Stacked Tabs in Bootstrap 3
...but it doesn't look like a tab (appropriate left, right borders) when it's selected/active. That's the purpose of tabs.
– Zim
Mar 1 '14 at 11:42
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Most tricky/useful commands for gdb debugger [closed]
...n it in reverse
* reverse-finish -- Execute backward until just before the selected stack frame is called
* reverse-next ('rn') -- Step program backward, proceeding through subroutine calls.
* reverse-nexti ('rni') -- Step backward one instruction, but proceed through called subroutines.
* reverse-s...
Rails: how do I validate that something is a boolean?
...age: validates :field, inclusion: { in: [ true, false ], message: "Please, select one!" }
– tagaism
Mar 23 '18 at 9:28
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Where Is Machine.Config?
...r opens up
Open "Framework"/"Framework64" folder(based on your processor).
Select specific FW version folder e.g. "v4.0.30319"
Open config folder
Machine.config will be available there.
Cheers.
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