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ruby operator “=~” [duplicate]

...of the operators, but I couldn't find =~ . What is =~ for, or what does it mean? The program that I saw has 3 Answers ...
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Git error: src refspec master does not match any [duplicate]

... You've created a new repository and added some files to the index, but you haven't created your first commit yet. After you've done: git add a_text_file.txt ... do: git commit -m "Initial commit." ... and those errors should go away. ...
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Eclipse plugin for generating a class diagram [closed]

...ot generate class diagrams from source code, or atleast when I used them quite a few years back. You can use them to handcraft class diagrams though. UMLet. I used this several years back. Appears to be in use, going by the comments in the Eclipse marketplace. Violet. This supports creation of othe...
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How to add not null constraint to existing column in MySQL

I have table name called "Person" with following column names 2 Answers 2 ...
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Log.INFO vs. Log.DEBUG [closed]

... and keep confusing myself between what kind of information i want to log with Log.INFO and Log.DEBUG. Are there any standards or rules of thumb on what each type of log message contains? ...
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How to print a double with two decimals in Android? [duplicate]

Maybe this is a silly question, but I cannot guess how to solve it if it's not creating a method. Maybe there's a "natural way" to do it, like in C for example. Here's the problem: ...
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Split string on whitespace in Python [duplicate]

... The str.split() method without an argument splits on whitespace: >>> "many fancy word \nhello \thi".split() ['many', 'fancy', 'word', 'hello', 'hi'] ...
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jQuery .on function for future elements, as .live is deprecated [duplicate]

... yet. Normally, I would use jQuery's .live function to handle this, but it seems that it is now deprecated in favor of .on . ...
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How to get the browser language using JavaScript [duplicate]

I want to detect the language of the browser that is entering my site, if it's En or Fr. So I can redirect to the En page or the other page. ...
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argparse: identify which subparser was used [duplicate]

I think this must be easy but I do not get it. 2 Answers 2 ...