大约有 23,000 项符合查询结果（耗时：0.0262秒） [XML]
Using IQueryable with Linq
...ECT c.Id, c.Name
FROM [dbo].[Customer] c
WHERE c.Region = 'North'
(the string might end up as a parameter; I can't remember)
None of this would be possible if we had just used a delegate. And this is the point of Queryable / IQueryable<T>: it provides the entry-point for using expression ...
Convert a timedelta to days, hours and minutes
... 3 days, 21:06:40.001000, and you can parse hours and minutes using simple string operations or regular expression.
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Display name of the current file in vim?
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'statusline' is a string, but you don't include quotes in the set: set statuslineset statusline=%f%m%r%h%w\ [%Y]\ [0x%02.2B]%<\ %F%4v,%4l\ %3p%%\ of\ %L\ lines also needs escaped spaces
– D. Ben Knoble
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Retrieving a random item from ArrayList [duplicate]
...ex);
System.out.println("Managers choice this week" + randomItem.toString() + "our recommendation to you");
return randomItem;
}
The toString part is just a quickie -- you might want to add a method 'getItemDescription' that returns a useful String for this purpose...
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Extracting .jar file with command line
...sing a scanner set to system.in
Scanner console = new Scanner(System.in);
String input = console.nextLine();
then get all the components and write them as a file.
JarEntry JE = null;
while((JE = getNextJarEntry()) != null)
{
//do stuff with JE
}
You can also use java.util.zip.ZipInputStrea...
Chai: how to test for undefined with 'should' syntax
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typeof operator returns a string; so this assertion could not be passed; cuz 'undefined' !== undefined
– dNitro
Sep 29 '17 at 9:02
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How to check if current thread is not main thread
...d SO Java users landing here, don't forget about:
public static void main(String[] args{
Thread.currentThread().setName("SomeNameIChoose");
/*...the rest of main...*/
}
After setting this, elsewhere in your code, you can easily check if you're about to execute on the main thread with:
if...
Writing to output window of Visual Studio
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I was not seeing the Debug.WriteLine("String") until after I did what Micah said. Tools|Options|Debugging uncheck Send Output to Immediate
– Skindeep2366
Sep 25 '13 at 18:29
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How to set request headers in rspec request spec?
...mall gotcha that I ran into because I am silly: The header keys have to be Strings. Symbols will not show up.
– ajmurmann
Sep 27 '13 at 23:21
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Rails select helper - Default selected value, how?
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if params[:pid] is a string, which if it came from a form, it is, you'll probably need to use
params[:pid].to_i
for the correct item to be selected in the select list
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