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How to check 'undefined' value in jQuery

... JQuery library was developed specifically to simplify and to unify certain JavaScript functionality. However if you need to check a variable against undefined value, there is no need to invent any special method, since JavaScript has a typeof operator, which is...
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Get the current script file name

... Just use the PHP magic constant __FILE__ to get the current filename. But it seems you want the part without .php. So... basename(__FILE__, '.php'); A more generic file extension remover would look like this... function chopExtension($filename) { ...
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CSS Box Shadow Bottom Only [duplicate]

... Do this: box-shadow: 0 4px 2px -2px gray; It's actually much simpler, whatever you set the blur to (3rd value), set the spread (4th value) to the negative of it. share | impr...
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How to use/install gcc on Mac OS X 10.8 / Xcode 4.4

... answered Jul 29 '12 at 11:32 VolcanicVolcanic 1,57211 gold badge1313 silver badges55 bronze badges ...
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Loading and parsing a JSON file with multiple JSON objects

... contains JSON per line, you are saved the headaches of trying to parse it all in one go or to figure out a streaming JSON parser. You can now opt to process each line separately before moving on to the next, saving memory in the process. You probably don't want to append each result to one list and...
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What is the difference between the kernel space and the user space?

... The really simplified answer is that the kernel runs in kernel space, and normal programs run in user space. User space is basically a form of sand-boxing -- it restricts user programs so they can't mess with memory (and other reso...
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Good ways to manage a changelog using git?

...orate --color Piping that output to ChangeLog is what I currently use in all my projects, it's simply amazing. share | improve this answer | follow | ...
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What is the difference between linear regression and logistic regression?

...e, and greater than 1 whereas probability can not. As regression might actually produce probabilities that could be less than 0, or even bigger than 1, logistic regression was introduced. Source: http://gerardnico.com/wiki/data_mining/simple_logistic_regression Outcome In linear regression, the...
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Difference Between One-to-Many, Many-to-One and Many-to-Many?

...to a skill, but the skill need not relate back to just those people. Typically it would, but such symmetry is not a requirement. Take love, for example -- it is bi-directional ("I-Love", "Loves-Me"), but often asymmetric ("I love her, but she doesn't love me")! All of these are well supported by H...
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Deserialize JSON with C#

I'm trying to deserialize a Facebook friend's Graph API call into a list of objects. The JSON object looks like: 10 Answ...