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How do I check if an HTML element is empty using jQuery?

...empty')){ //do something } for more info see http://api.jquery.com/is/ and http://api.jquery.com/empty-selector/ EDIT: As some have pointed, the browser interpretation of an empty element can vary. If you would like to ignore invisible elements such as spaces and line breaks and make the imple...
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What does rake db:test:prepare actually do?

I am following the rails tutorial videos and I can't figure out what the db:test:prepare command actually does. Can someone provide an explanation? ...
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Undo working copy modifications of one file in Git?

... what's the difference between HEAD and HEAD^? – hasen Mar 28 '09 at 22:06 63 ...
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Case preserving substitute in Vim

... We do not deserve Tim Pope. – Andrew Keeton May 23 '19 at 19:47 1 This plu...
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Multiple controllers with AngularJS in single page app

...e controllers for a single page application. I have tried to figure it out and I've found questions very similar to mine, but there is just a ton of different answers solving a specific problem where you end up not using multiple controllers for a single page app. ...
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How do you sort a dictionary by value?

...consisting of keys & values, by value. For example, I have a hash of words and respective frequencies, that I want to order by frequency. ...
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Choosing a file in Python with simple Dialog

...ow from appearing filename = askopenfilename() # show an "Open" dialog box and return the path to the selected file print(filename) Done! share | improve this answer | follo...
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How can I grep for a string that begins with a dash/hyphen?

...with a dash/hyphen, like -X , in a file, but it's confusing this as a command line argument. 10 Answers ...
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Generic TryParse

... edited Jan 9 '17 at 7:57 meJustAndrew 4,44244 gold badges3434 silver badges6161 bronze badges answered Jun 2 '10 at 21:23 ...
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How to add multi line comments in makefiles

...line continuations. For example: # This is the first line of a comment \ and this is still part of the comment \ as is this, since I keep ending each line \ with a backslash character However, I imagine that you are probably looking to temporarily comment out a chunk of your makefile for debuggi...