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What's the best way to add a drop shadow to my UIView

...ill observe a certain lag occurring during events like rotating the device and/or similar. It's an important performance tweak. Regarding your issue specifically: The important line is view.layer.masksToBounds = NO. It disables the clipping of the view's layer's sublayers that extend further than t...
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Understanding the ngRepeat 'track by' expression

I'm having difficulties understanding how the track by expression of ng-repeat in angularjs works. The documentation is very scarce: http://docs.angularjs.org/api/ng/directive/ngRepeat ...
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Syntax for a single-line Bash infinite while loop

I am having trouble coming up with the right combination of semicolons and/or braces. I'd like to do this, but as a one-liner from the command line: ...
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Get a UTC timestamp [duplicate]

... thanks for the clarifications Aprillion! Finally I understand why people keep saying new Date().getTime() or Date.now() is UTC but when I try console.log(new Date()), it displays time in my timezone. The Date internally has the timestamp (milliseconds) in UTC (w/c is what is returne...
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How to get back to most recent version in Git?

I have recently moved from SVN to Git and am a bit confused about something. I needed to run the previous version of a script through a debugger, so I did git checkout <previous version hash> and did what I needed to do. ...
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How to check the version before installing a package using apt-get?

...ow the version details. It also shows which version is currently installed and which versions are available to install. For example, apt-cache policy hylafax+ share | improve this answer | ...
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jQuery .hasClass() vs .is()

...f determining whether an element is assigned a class, from a performance standpoint? 4 Answers ...
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how to add records to has_many :through association in rails

... @Mischa how should i handle error if House.find(params[:house_id]) is nill.. i got error of TypeMismatch if params[:house_id] is nil.. i already using rescue. but is there any better_way..?? – Vishal Jul 30...
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jQuery: keyPress Backspace won't fire?

...dent on key. You want to use keypress for Enter key, keydown for Backspace and so forth; otherwise you'll find your events in some browsers don't really work as you expect, especially when you want to prevent the default behavior for the key. When you use the wrong one, what will happen is either yo...
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Node.js check if file exists

...h.existsSync('foo.txt')) { // do something } For Node.js v0.12.x and higher Both path.exists and fs.exists have been deprecated *Edit: Changed: else if(err.code == 'ENOENT') to: else if(err.code === 'ENOENT') Linter complains about the double equals not being the triple equals. Usin...