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Better to 'try' something and catch the exception or test if it's possible first to avoid an excepti

Should I test if something is valid or just try to do it and catch the exception? 8 Answers ...
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Android Studio Multi-Windows for One Project

I'm wondering if anyone knows how to open two windows of Android Studio with both having the same project. I know you can drag tabs out, but that allows you to only edit that one file. I want two fully-featured windows with each being able to see the Project Files/Structure. ...
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what's the meaning of '=?' in angularJS directive isolate scope declaration?

... or =attr - set up bi-directional binding between a local scope property and the parent scope property of name defined via the value of the attr attribute. If no attr name is specified then the attribute name is assumed to be the same as the local name. Given <widget my-attr="parentModel"...
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How to vertically align into the center of the content of a div with defined width/height?

... I have researched this a little and from what I have found you have four options: Version 1: Parent div with display as table-cell If you do not mind using the display:table-cell on your parent div, you can use of the following options: .area{ height...
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Android Studio - Auto complete and other features not working

I installed android studio.. it was working fine. Now all the sudden, none of the auto complete features are working.. I can type anything anywhere no variable checking, no help with functions or checking anything. I can still compile the project and I get errors when that happens. ...
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Add legend to ggplot2 line plot

... about legends in ggplot2. I managed to plot three lines in the same graph and want to add a legend with the three colors used. This is the code used ...
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Is there a better alternative than this to 'switch on type'?

...-types Short version: TypeSwitch is designed to prevent redundant casting and give a syntax that is similar to a normal switch/case statement. For example, here is TypeSwitch in action on a standard Windows form event TypeSwitch.Do( sender, TypeSwitch.Case<Button>(() => textBox1.T...
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Should you commit .gitignore into the Git repos?

... If you already have a file checked in, and you want to ignore it, Git will not ignore the file if you add a rule later. In those cases, you must untrack the file first, by running the following command in your terminal: git rm --cached FILENAME ...
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Adding information to an exception?

...ay, you'd need to do something along these lines to preserve the traceback and not hardcode the type of exception in function bar(). Also note that there will be the line: During handling of the above exception, another exception occurred: in the traceback messages displayed. # for Python 3.x .....
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Error installing mysql2: Failed to build gem native extension

... On Ubuntu/Debian and other distributions using aptitude: sudo apt-get install libmysql-ruby libmysqlclient-dev Package libmysql-ruby has been phased out and replaced by ruby-mysql. This is where I found the solution. If the above command ...