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JavaScript isset() equivalent

.... } to do the same, but this is not exactly the same statement. The condition will also evaluate to false if array.foo does exists but is false or 0 (and probably other values as well). ...
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How can I beautify JavaScript code using Command Line?

...rg.mozilla.javascript.tools.shell.Main beautify.js file-to-pp.js You can mix and match Java and Javascript in your Rhino run scripts, so if you know a little Java it shouldn't be too hard to get this running with text-streams as well. ...
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How do you bind an Enum to a DropDownList control in ASP.NET?

... I solved it mixing this solution with this one stackoverflow.com/questions/3213432/… – Javiere Jun 26 '13 at 12:12 ...
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Constructor of an abstract class in C#

...ce an abstract class is not completely abstract (unlike interfaces), it is mix of both abstract and concrete members, and the members which are not abstract are needed to be initialized, which is done in abstract class's constructors, it is necessary to have constructors in the abstract class. Off c...
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Encrypting & Decrypting a String in C# [duplicate]

...Cryptography is not simple so it's best to avoid "rolling your own" encryption algorithm. You can, however, "roll your own" wrapper class around something like the built-in RijndaelManaged cryptography class. Rijndael is the algorithmic name of the current Advanced Encryption Standard, so you're c...
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How to add an extra column to a NumPy array

... 1., 0.]]) : # not np.r_[ A, A[1] ] : np.r_[ A[0], 1, 2, 3, A[1] ] # mix vecs and scalars array([ 1., 0., 0., 1., 2., 3., 0., 1., 0.]) : np.r_[ A[0], [1, 2, 3], A[1] ] # lists array([ 1., 0., 0., 1., 2., 3., 0., 1., 0.]) : np.r_[ A[0], (1, 2, 3), A[1] ] # tuples array...
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Convert string in base64 to image and save on filesystem in Python

...ved arbitrary codec support from string/bytes .encode() and .decode() functions: # For both Python 2.7 and Python 3.x import base64 with open("imageToSave.png", "wb") as fh: fh.write(base64.decodebytes(img_data)) share...
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How do I center align horizontal menu?

...ter align a horizontal menu. I've tried various solutions, including the mix of inline-block / block / center-align etc., but haven't succeeded. ...
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How to submit a form with JavaScript by clicking a link?

...ns why this technique is not recommendable. One major argument is that you mix markup (HTML) with scripts (JS). The code becomes unorganized and rather unmaintainable. <a href="#" onclick="document.getElementById('form-id').submit();">submit</a> <button onclick="document.getElementB...
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How do I do a bulk insert in mySQL using node.js

...uaranteed that in the case of simultaneous inserts the race condition wont mix insert ids? – Purefan Nov 4 '16 at 13:23 1 ...