大约有 40,000 项符合查询结果（耗时：0.0516秒） [XML]
How to generate random SHA1 hash to use as ID in node.js?
... answer Gabi, and just a tiny bit faster, about 15%. Great job both! I actually like to see a Date() in the salt, it gives a developer easy confidence that this will be unique value in all but the most insane parallel computing situations. I know its silly and randomBytes(20) is going to be unique, ...
How do I remove background-image in css?
I have a general rule which gives all DIVs a background image.
I have one div (with id='a') which I don't want it to have the background image.
What css rule do I have to give it?
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In c# what does 'where T : class' mean?
...put this is constraining the generic parameter to a class (or more specifically a reference type which could be a class, interface, delegate, or array type).
See this MSDN article for further details.
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How do I escape curly braces for display on page when using AngularJS?
... want the user to see double curly braces, but Angular binds them automatically. This is the opposite case of this question where they want to not see curly braces used for binding when the page is loading.
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Populate nested array in mongoose
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The "model: 'Component'" is really important to keep!
– Totty.js
Feb 24 '14 at 17:08
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Using grep to search for a string that has a dot in it
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@jringoot Seriously? I think this isn't clear at all -- it looks more like a follow-up question from someone who wasn't familiar with quoting.
– tripleee
Aug 7 '18 at 6:58
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Use grep to report back only line numbers
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All of these answers require grep to generate the entire matching lines, then pipe it to another program. If your lines are very long, it might be more efficient to use just sed to output the line numbers:
sed -n '/pattern/=...
Using setImageDrawable dynamically to set image in an ImageView
I am generating a string from database dynamically which has the same name of image in drawable folder.
17 Answers
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R: Comment out block of code [duplicate]
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A sort of block comment uses an if statement:
if(FALSE) {
all your code
}
It works, but I almost always use the block comment options of my editors (RStudio, Kate, Kwrite).
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How to store values from foreach loop into an array?
...used by any developers. The counter and incrementing are not necessary at all.
– mickmackusa
Jun 27 '19 at 7:05
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