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What is the difference between null and undefined in JavaScript?

... The comment from Nir O. is very important. If I want to have a variable that has no value in the beginning, I write "... = null", eg "myvar = null". This way - when I mistype "if (myxar == null) {...}" - the if block is not execu...
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Deserialize JSON into C# dynamic object?

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What's the difference between OpenID and OAuth?

...blog post "OpenID versus OAuth from the user’s perspective" has a simple comparison of the two from the user's perspective and "OAuth-OpenID: You’re Barking Up the Wrong Tree if you Think They’re the Same Thing" has more information about it. ...
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How to use Class in Java?

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What is the cleanest way to disable CSS transition effects temporarily?

...ed them unprefixed.) But that's just style, and is the easy bit. When you come to try and use this class, you'll run into a trap. The trap is that code like this won't work the way you might naively expect: // Don't do things this way! It doesn't work! someElement.classList.add('notransition') som...
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What is the most efficient way to create HTML elements using jQuery?

... @David - obviously you're right. I will note that I added the comment about 2 years ago just when I was starting to learn jQuery. You would need to do an appendTo, ... Because the comments were obviously wrong, I've removed them. – tvanfosson Sep ...
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How to configure Visual Studio to use Beyond Compare

I would like to configure Visual Studio to open Beyond Compare by default as the diff tool. How can I do this? 10 Answers ...
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Select N random elements from a List in C#

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Where to put model data and behaviour? [tl; dr; Use Services]

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How do you generate dynamic (parameterized) unit tests in python?

... that more proper answer is given in the duplicate question: stackoverflow.com/a/2799009/322020 - you have use to .__name__ = to enable .exact_method testing – Nakilon Apr 12 '13 at 10:38 ...