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How can I get the button that caused the submit from the form submit event?

...document.activeElement); if ( /* there is an activeElement at all */ $btn.length && /* it's a child of the form */ $form.has($btn) && /* it's really a submit element */ $btn.is('button[type="submit"], input[type="submit"], input...
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Why is “import *” bad?

...ed (readability). Because you can't use cool tools like pyflakes to statically detect errors in your code. share | improve this answer | follow | ...
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How to run a class from Jar which is not the Main-Class in its Manifest file

... And if you want all jars in current directory on classpath too (eg. running Main class from lib directory) you can use java -cp "./*" com.mycomp.myproj.AnotherClassWithMainMethod Note the double quotes around ./* preventing unix machines fro...
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How do I specify new lines on Python, when writing on files?

... It depends on how correct you want to be. \n will usually do the job. If you really want to get it right, you look up the newline character in the os package. (It's actually called linesep.) Note: when writing to files using the Python API, do not use the os.linesep. Just use ...
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AngularJS : Factory and Service? [duplicate]

...ating between controllers like sharing data. Can use other dependencies Usually used when the service instance requires complex creation logic Cannot be injected in .config() function. Used for non configurable services If you're using an object, you could use the factory provider. Syntax: module...
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What SOAP client libraries exist for Python, and where is the documentation for them? [closed]

... I'm doing this to get myself acquainted with both technologies. I've installed SOAPlib and I've tried to read their Client documentation, but I don't understand it too well. Is there anything else I can look into which is more suited for being a SOAP Client library for Python? ...
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What is the (function() { } )() construct in JavaScript?

...tion expression. Then look at the last pair (function(){})();, this is normally added to an expression to call a function; in this case, our prior expression. This pattern is often used when trying to avoid polluting the global namespace, because all the variables used inside the IIFE (like in any ...
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Open file dialog box in JavaScript

...xtensions. Many browsers support the accept attribute on file inputs. This allows you to limit the file types displayed in the file browser dialog. Fine Uploader provides access to this functionality via the acceptFiles property of the validation option. See the validation section of the options doc...
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Begin, Rescue and Ensure in Ruby?

... Yes, ensure ensures that the code is always evaluated. That's why it's called ensure. So, it is equivalent to Java's and C#'s finally. The general flow of begin/rescue/else/ensure/end looks like this: begin # something which might raise an exception rescue SomeExceptionClass => some_variab...
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How to convert index of a pandas dataframe into a column?

...vel) and creates an int index from 0 to len(df)-1 – BallpointBen Jan 10 '19 at 19:52 2 Assignment...