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PHP: How to check if image file exists?

...if it is a file then you should use is_file together with file_exists to know if there is really a file behind the path, otherwise file_exists will return true for any existing path. Here is the function i use : function fileExists($filePath) { return is_file($filePath) && file_...
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What does string::npos mean in this code?

...ution is to define your own signed value for npos: const int NPOS = -1; Now the comparison looks a bit different and even more convenient: if (idx == NPOS) { // works almost always ... } share | ...
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How can I use UIColorFromRGB in Swift?

...0FF) / 255.0, alpha: CGFloat(1.0) ) } } This can now be used like so: view.backgroundColor = UIColor(rgb: 0x209624) I would only recommend monkey patching UIKit classes like this in your own client code, not libraries. ...
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Matlab: Running an m-file from command-line

..., end, exit" I found the original reference here. Since original link is now gone, here is the link to an alternate newreader still alive today: exit matlab when running batch m file share | im...
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How to substring in jquery

...he substr function will allow you to extract certain parts of the string. Now, if you're looking for a specific string or character to use to find what part of the string to extract, you can make use of the indexOf function as well. http://www.w3schools.com/jsref/jsref_IndexOf.asp The question is ...
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'adb' is not recognized as an internal or external command, operable program or batch file

...ion is at: C:\Users\USERNAME\AppData\Local\Android\sdk\platform-tools. Now add this location to the end of PATH of environment variables. Eg: ;C:\Users\USERNAME\AppData\Local\Android\sdk\platform-tools share ...
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Clearing NSUserDefaults

... Good to know, thank you! But I was talking about the string appDomain. Is that auto released also? – IcyBlueRose Oct 17 '11 at 14:28 ...
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Getting an object from an NSSet

... You can also look up a known object by a potential duplicate by sending the set a member: message. If it returns nil, the set does not contain an object equal to the one you passed; if it returns an object pointer, then the pointer it returns is to ...
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linq query to return distinct field values from a list of objects

... Now I can see there is an overload of Distinct in LINQ which take an IEqualityComparer as parameter and return a list of distinct objects depending upon the implementation of methods in IEqualityComparer ...
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How to stop Jenkins installed on Mac Snow Leopard?

I have installed Jenkins executable on OSX, but now I want to stop it running. Whenever I kill it, no matter how, it just restarts immediately. ...