I would like to know how to check if an array is empty or null in jQuery. I tried array.length === 0 but it didn\'t work. It did not throw any error either.
Is there a JavaScript equivalent to .NET\'s String.IsNullOrWhitespace so that I can check if a textbox on the client-side has开发者_开发百科 any visible text in it?
What\'s the preferred way to implement IsEmpty statement for your own container-like class? It could be a simple method bool IsEmpty() or you could have some gettable property IsEmpty / Empty.
I am trying to polish some code with the if(!empty) function in PHP but I don\'t know how to apply this to multiple variables when they are not an array (as I had to do previously) so if I have:
I have a table and the columns on this table contains empty spaces for some records. Now I need to move the data to another table and replace the empty spaces with a NULL value.
This question already has answers here: Closed 12 years ago. Possible Duplicate: How do I test for an empty Javascript object from JSON?
How do I detect empty cells in a cell array? I know the command to remove the empty cell is a(1) = [], but I can\'t seem to get MATLAB to automatically detect which cells are empty.
I have an object and within it I wanna check if some properties is set to false, like: If (not objresult.EOF) Then
How ca开发者_Go百科n I check if a variable is empty in Bash?In Bash at least the following command tests if $var is empty:
I was looking at some exa开发者_如何学JAVAmple C# code, and noticed that one example wrapped the return in ()\'s.
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