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How do I insert NULL values using PDO?

I'm using this code and I'm beyond frustration: 9 Answers 9 ...
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Test whether string is a valid integer

I'm trying to do something common enough: Parse user input in a shell script. If the user provided a valid integer, the script does one thing, and if not valid, it does something else. Trouble is, I haven't found an easy (and reasonably elegant) way of doing this - I don't want to have to pick it ap...
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“To Do” list before publishing Android app to market [closed]

I'm just about ready to publish my first app to the Android market, and I'd like to know if any of you have any tips about any experiences you may have encountered in regard to publishing an app that goes beyond the obvious and already documented. ...
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Why does Iterable not provide stream() and parallelStream() methods?

I am wondering why the Iterable interface does not provide the stream() and parallelStream() methods. Consider the following class: ...
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Using msbuild to execute a File System Publish Profile

I have a c# .Net 4.0 project created with VS2010 and now being accessed with VS2012. 7 Answers ...
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In Python, how do I convert all of the items in a list to floats?

I have a script which reads a text file, pulls decimal numbers out of it as strings and places them into a list. 12 Answers...
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AngularJS : Initialize service with asynchronous data

I have an AngularJS service that I want to initialize with some asynchronous data. Something like this: 10 Answers ...
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When should I make explicit use of the `this` pointer?

When should I explicitly write this->member in a method of a class? 12 Answers 12...
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Learn C first before learning Objective-C [closed]

Being an aspiring Apple developer, I want to get the opinions of the community if it is better to learn C first before moving into Objective-C and ultimately the Cocoa Framework? ...
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The simplest way to comma-delimit a list?

What is the clearest way to comma-delimit a list in Java? 30 Answers 30 ...