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Performance difference between IIf() and If
...lete.
Like in C#, VB's conditional If operator short-circuits, so you can now safely write the following, which is not possible using the IIf function:
Dim len = If(text Is Nothing, 0, text.Length)
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Get child node index
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@sfarbota Javascript doesn't know block scoping, so i will be accesible.
– A1rPun
Sep 22 '14 at 15:12
3
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Crop MP3 to first 30 seconds
...his means ffmpeg -t 30 -i inputfile.mp3 -acodec copy outputfile.mp3 would now be the correct answer.
– Oben Sonne
Dec 30 '12 at 20:41
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Click through div to underlying elements
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Also nice to know...
You can disable pointer-events in a parent element (probably transparent div) but have it still enabled for its child elements.
This is helpful if you work with multiple overlapping div layers, where you want to be abl...
In C#, what happens when you call an extension method on a null object?
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Actually, sometimes you don't know if someone is dead, so you still ask, and the person might reply, "no, just resting with my eyes closed"
– nurchi
Sep 17 '14 at 1:45
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The term 'Update-Database' is not recognized as the name of a cmdlet
...using EF5 beta1 and while I was able to run the "Update-Database" before. Now that I shut down Visual Studio, I cannot get it to run. I get the following error:
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How do you force a makefile to rebuild a target
...se variable $(MAKE) instead of make to get recursive make calls
save and now call
make new
and it will recompile everything again
What happened?
1) 'new' calls clean.
'clean' do 'rm' which removes all object files that have the extension of '.o'.
2) 'new' calls 'make'.
'make' see that th...
How to use dashes in HTML-5 data-* attributes in ASP.NET MVC
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This problem has been addressed in ASP.Net MVC 3. They now automatically convert underscores in html attribute properties to dashes. They got lucky on this one, as underscores are not legal in html attributes, so MVC can confidently imply that you'd like a dash when you use an u...
How to get the name of the current method from code [duplicate]
I know you can do
8 Answers
8
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How to find the array index with a value?
..."rollnumber": 3,
"name": "amit",
"subject": "chemistry"
},
];
Now if we have a requirement to select a particular object in the array. Let us assume that we want to find index of student with name Tanmay.
We can do that by iterating through the array and comparing value at the given ke...