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What does “./bin/www” do in Express 4.x?

... Because the app.js file that was generated by the Express 4 generator is now a Node.js module, it can no longer be started independently as an app (unless you modify the code). The module must be loaded in a Node.js file and started via the Node.js file. The Node.js file is ./bin/www in this case....
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How to remove all breakpoints in one step in Google Chrome?

... This is now possible in Sources tab of Chrome Developer Tools. Please see screen grab below and right click within the "Breakpoints" section of the left window. ...
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Use of .apply() with 'new' operator. Is this possible?

...or even // return new (Cls.bind.apply(Cls, arguments)); // if you know that Cls.bind has not been overwritten } It can be used as follows: var s = newCall(Something, a, b, c); or even directly: var s = new (Function.prototype.bind.call(Something, null, a, b, c)); var s = new (Function.pro...
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How do I parse JSON with Objective-C?

...f the OS X v10.7 and iOS 5 launches, probably the first thing to recommend now is NSJSONSerialization, Apple's supplied JSON parser. Use third-party options only as a fallback if you find that class unavailable at runtime. So, for example: NSData *returnedData = ...JSON data, probably from a web r...
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How to listen for changes to a MongoDB collection?

... Replica Set, all of the MongoDB actions are logged to an operations log (known as the oplog). The oplog is basically just a running list of the modifications made to the data. Replicas Sets function by listening to changes on this oplog and then applying the changes locally. Does this sound famil...
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Want to find records with no associated records in Rails

... This is really good! Thanks! Now if the rails gods could perhaps implement it as a simple Person.where(contacts: nil) or Person.with(contact: contact) if using where encroaches too far into 'properness' - but given that contact: is already being parsed a...
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No Multiline Lambda in Python: Why not?

... single Python construct that multiline lambdas clash with. Given that I know the language pretty well, this surprised me. ...
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UINavigationBar custom back button without title

...evious view controller). The newly pushed view controller back button will now show whatever you put for initWithTitle, which in this case is an empty string. share | improve this answer |...
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Why doesn't Dictionary have AddRange?

...nderlying implementation would bypass the code for duplicate checking. So now, you have a flag that allows the AddRange to support both cases, but has an undocumented side effect (which is something that the Framework designers worked really hard to avoid). Summary As there is no clear, consisten...
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Is there a .NET/C# wrapper for SQLite? [closed]

...ut is no longer an active contributor. Development and maintenance work is now mostly performed by the SQLite Development Team. The SQLite team is committed to supporting System.Data.SQLite long-term. "System.Data.SQLite is the original SQLite database engine and a complete ADO.NET 2.0 provider al...