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Find value in an array

... array.select{} will go through all elements in the array looking those which match the condition. array.find instead will return the first element that match the condition. So preferable use array.find{ |e| e == 3 } then array.select{ |e| e == 3 }.first ...
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How can I set up an editor to work with Git on Windows?

...a script) was to realize that: what you refer to in the config file is actually a shell (/bin/sh) script, not a DOS script. So what does work is: C:\prog\git>git config --global core.editor C:/prog/git/npp.bat with C:/prog/git/npp.bat: #!/bin/sh "c:/Program Files/Notepad++/notepad++.exe" -mu...
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Using {} in a case statement. Why?

What is the point with using { and } in a case statement? Normally, no matter how many lines are there in a case statement, all of the lines are executed. Is this just a rule regarding older/newer compilers or there is something behind that? ...
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Better way of getting time in milliseconds in javascript?

...y Date.now(). The skipping is most likely due to garbage collection. Typically garbage collection can be avoided by reusing variables as much as possible, but I can't say specifically what methods you can use to reduce garbage collection pauses. ...
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Heroku “psql: FATAL: remaining connection slots are reserved for non-replication superuser connectio

I'm developing an app on Heroku with a Postgresql backend. Periodically, I get this error message when trying to access the database, both from the CLI and from loading a page on the server: ...
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Change One Cell's Data in mysql

...nly one cell of a mysql table. I have problem with UPDATE because it makes all the parameters in a column change but I want only one changed. How? ...
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Apple Mach-O Linker Error when compiling for device

... Here is permanent solution.Generally overwriting project may cause this prolems.Try this method. -UPDATE - Clang error - Mach-O Linker error In some case error log window displaying .xctest error, to fix it -> Select your project -> Beside this(ju...
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Get PHP class property by string

How do I get a property in a PHP based on a string? I'll call it magic . So what is magic ? 12 Answers ...
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SQL order string as number

... MySQL automatically converts the string to a number to make the multiplication with 1 – juergen d Aug 4 '12 at 12:40 1 ...
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How to hide iOS status bar

... In the Plist add the following properties. Status bar is initially hidden = YES View controller-based status bar appearance = NO now the status bar will hidden. share | improve this ...