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What is the difference between return and return()?

...i = 1 + 1; and var i = (1 + 1); That is, nothing. The parentheses are allowed because they are allowed in any expression to influence evaluation order, but in your examples they're just superfluous. return is not a function, but a statement. It is syntactically similar to other simple control ...
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Why is SELECT * considered harmful?

... There are really three major reasons: Inefficiency in moving data to the consumer. When you SELECT *, you're often retrieving more columns from the database than your application really needs to function. This causes more data to mov...
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Adding local .aar files to Gradle build using “flatDirs” is not working

...oject(':ProjectName') to dependency section) ProjectName (added automatically after importing, matching the name of your aar file) build gradle etc This worked for me running Android Studio 0.8.0. Don't forget to synchronize gradle (using toolbar button or in File->Synchronize) after yo...
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Stop setInterval call in JavaScript

I am using setInterval(fname, 10000); to call a function every 10 seconds in JavaScript. Is it possible to stop calling it on some event? ...
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What are Transient and Volatile Modifiers?

... Actually, the JLS permits static and transient to be used together. The problem is it makes little sense, because typical serialization mechanisms don't persist statics anyway. – Stephen C ...
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What does it mean when a CSS rule is grayed out in Chrome's element inspector?

... selected DOM node. I guess, for the sake of completeness, dev tools shows all the rules from that set, whether they are applied or not. In the case where a rule is applied to the currently selected element due to inheritance (i.e. the rule was applied to an ancestor, and the selected element inher...
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MIT vs GPL license [closed]

...n your entire project that is using the GPL code also becomes GPL automatically. Which means, it must be open-sourced, and the recipient gets all the same rights as you - meaning, they can turn around and distribute it, modify it, sell it, etc. And that would include your proprietary code which woul...
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How to check if a view controller is presented modally or pushed on a navigation stack?

... Documentation for isBeingPresented - This method returns YES only when called from inside the viewWillAppear: and viewDidAppear: methods. – funct7 Jun 25 '15 at 0:30 ...
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how do I use UIScrollView in Interface Builder?

...sed UIScrollView successfully in the past by manipulating it programmatically, I'm having trouble getting it to work by setting it up exclusively in Interface Builder. ...
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CSS: How to remove pseudo elements (after, before,…)?

... Does this actually clear out other content-related styles, thus even if you have paddings and margins set they become inert? – Ryan Williams Jul 25 '14 at 13:25 ...