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How to check that an object is empty in PHP?

... 130 You can cast to an array and then check if it is empty or not $arr = (array)$obj; if (!$arr) { ...
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Detect backspace in empty UITextField

...ork. Try setting the text field's text to a zero width space character \u200B. When backspace is pressed on a text field that appears empty, it will actually delete your space. Then you can just reinsert the space. May not work if the user manages to move the caret to the left of the space. ...
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How can I start PostgreSQL server on Mac OS X?

... +50 The Homebrew package manager includes launchctl plists to start automatically. For more information, run brew info postgres. Start man...
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How do you add an in-app purchase to an iOS application?

...roduct = nil; int count = [response.products count]; if(count > 0){ validProduct = [response.products objectAtIndex:0]; NSLog(@"Products Available!"); [self purchase:validProduct]; } else if(!validProduct){ NSLog(@"No products available"); /...
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Calculating text width

... | edited Feb 8 '12 at 9:10 answered May 5 '10 at 8:20 Rune...
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Visual Studio loading symbols

... Debug -> Delete All Breakpoints ( http://darrinbishop.com/blog/2010/06/sharepoint-2010-hangs-after-visual-studio-2010-f5-debugging ) After that you can use them again, but do it once. It will remove some kind of "invalid" breakpoints too and then loading symbols will be fast again. I was ...
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How to find if an array contains a specific string in JavaScript/jQuery? [duplicate]

...5 Black 10.9k1919 gold badges8989 silver badges165165 bronze badges answered Mar 7 '13 at 16:50 JamesJames ...
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Open multiple Eclipse workspaces on the Mac

...ilhous's answer seems to be the officially supported way to do this as of 10.5. Earlier version of OS X and even 10.5 and up should still work using the following instructions though. Open the command line (Terminal) Navigate to your Eclipse installation folder, for instance: cd /Applications...
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Intellij reformat on file save

...| edited Mar 2 '18 at 15:30 L Y E S - C H I O U K H 3,56666 gold badges3030 silver badges5151 bronze badges ...
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How can I run an external command asynchronously from Python?

... 10 Answers 10 Active ...