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Java's L number (long) specification

It appears that when you type in a number in Java, the compiler automatically reads it as an integer, which is why when you type in (long) 6000000000 (not in integer's range) it will complain that 6000000000 is not an integer. To correct this, I had to specify 6000000000L . I just learned abo...
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How does collections.defaultdict work?

... Usually, a Python dictionary throws a KeyError if you try to get an item with a key that is not currently in the dictionary. The defaultdict in contrast will simply create any items that you try to access (provided of course th...
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When to use in vs ref vs out

...ss you need ref. It makes a big difference when the data needs to be marshalled e.g. to another process, which can be costly. So you want to avoid marshalling the initial value when the method doesn't make use of it. Beyond that, it also shows the reader of the declaration or the call whether the ...
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How to write to a file in Scala?

...portance are Resource, ReadChars and WriteChars. File - File is a File (called Path) API that is based on a combination of Java 7 NIO filesystem and SBT PathFinder APIs. Path and FileSystem are the main entry points into the Scala IO File API. import scalax.io._ val output:Output = Resourc...
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How do I correctly clone a JavaScript object?

... if you know its name, but I don't know of any way to discover it automatically. Yet another snag in the quest for an elegant solution is the problem of setting up the prototype inheritance correctly. If your source object's prototype is Object, then simply creating a new general object with {} wil...
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Client on node: Uncaught ReferenceError: require is not defined

... true when the browser window (where this HTML file is embedded) was originally created in the main process. function createAddItemWindow() { //Create new window addItemWindown = new BrowserWindow({ width: 300, height: 200, title: 'Add Item', //The lines below solved the issue ...
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Is [UIScreen mainScreen].bounds.size becoming orientation-dependent in iOS8?

...would be even more helpful if it was explained what interface oriented actually means. I may be wrong, but I think the orientation dependence only pertains to view controllers. If you take any other class and calculate the bounds, they are still according to the old style, always portrait. ...
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How to prevent IFRAME from redirecting top-level window

... iFrames do allow cross-domain communication, though, using postMessage. This isn't a security risk, but someone might care to know that this capability exists when they see your comment. :) – coreyward ...
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Does Swift have documentation generation support?

Many languages support documentation comments to allow a generator (like javadoc or doxygen ) to generate code documentation by parsing that same code. ...
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Query for documents where array size is greater than 1

... Great, that was perfect thank you. Although I actually have some documents that don't have a name so had to modify the query to be: db.accommodations.find( { $where: "if (this.name && this.name.length > 1) {return this; } "} ); – emson ...