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How to check 'undefined' value in jQuery
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when I am testing "typeof obj === undefined", the alert(typeof obj) returning object, even though obj is undefined.
Since obj is type of Object its returning Object, not undefined.
So after hours of testing I opted below technique.
if(document.getElementById(obj) !== null)...
Haskell: Where vs. Let
I am new to Haskell and I am very confused by Where vs. Let . They both seem to provide a similar purpose. I have read a few comparisons between Where vs. Let but I am having trouble discerning when to use each. Could someone please provide some context or perhaps a few examples that demonstr...
How to quickly open a file in Visual Studio 2012
I am trying VS2012 RC but find one good feature no available any more (or if it still is, please let me know): in VS2010, if I know a file name, for example, MyFile.cs , I can quickly open it by typing Ctrl + D (or whatever shortcut assigned) to go to Find tool, and then type >of myfile.cs , ...
NSString: isEqual vs. isEqualToString
...ce difference, only a bit of type safty: blog.bignerdranch.com/334-isequal-vs-isequaltostring
– Caro
Dec 25 '13 at 18:47
2
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How many characters can UTF-8 encode?
...nes of Unicode, which include less common CJK characters, various historic scripts, mathematical symbols, and emoji (pictographic symbols).
source: Wikipedia
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Clone() vs Copy constructor- which is recommended in java [duplicate]
clone method vs copy constructor in java. which one is correct solution. where to use each case?
6 Answers
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Multiprocessing vs Threading Python [duplicate]
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IPC a little more complicated with more overhead (communication model vs. shared memory/objects)
Larger memory footprint
Threading
Pros
Lightweight - low memory footprint
Shared memory - makes access to state from another context easier
Allows you to easily make responsive UIs
cPython C ex...
Android gradle: buildtoolsVersion vs compileSdkVersion
What's the difference between buildtoolsVersion vs compileSdkVersion in the build.gradle for an Android project?
2 Answ...
jQuery.inArray(), how to use it right?
...= new Array("php", "tutor");
if( $.inArray("php", myArray) !== -1 ) {
alert("found");
}
Reference
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StringUtils.isBlank() vs String.isEmpty()
I ran into some code that has the following:
11 Answers
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