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Responding with a JSON object in Node.js (converting object/array to JSON string)

... Yes, to make it a valid response the client will understand. Add: res.writeHead(200, {'Content-Type': 'application/json'}) before – Ali Dec 17 '12 at 13:50 ...
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Delete duplicate rows from small table

... DELETE FROM dupes a WHERE a.ctid <> (SELECT min(b.ctid) FROM dupes b WHERE a.key = b.key); share | improve th...
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socket.io and session?

...lashsocket transport in my code. To make it work, in the express/connect side, I explicitly define the session store so I can use it inside socket: MemoryStore = require('connect/middleware/session/memory'), var session_store = new MemoryStore(); app.configure(function () { app.use(express.sessi...
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Change Placeholder Text using jQuery

... You can use following code to update a placeholder by id: $("#serMemtb").attr("placeholder", "Type a Location").val("").focus().blur(); share | improve this answer | ...
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How to get the width and height of an android.widget.ImageView?

I have an image view with some default height and width, images are stored in db and I want to scale Image according to Imageview height width. As I don't want it give default values because when ever I change it's height and width I also have to change it in code. ...
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What is a serialVersionUID and why should I use it?

Eclipse issues warnings when a serialVersionUID is missing. 26 Answers 26 ...
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What is the standard naming convention for html/css ids and classes?

...sing it a lot. For example, if you've got your underscore key on the underside of the keyboard (unlikely, but entirely possible), then stick to hyphens. Just go with what is best for yourself. Additionally, all 3 of these conventions are easily readable. If you're working in a team, remember to keep...
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iPhone get SSID without private library

...have a commercial app that has a completely legitimate reason to see the SSID of the network it is connected to: If it is connected to a Adhoc network for a 3rd party hardware device it needs to be functioning in a different manner than if it is connected to the internet. ...
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Method overloading in Objective-C?

...are two different methods, even though they both begin "writeToFile": -(void) writeToFile:(NSString *)path fromInt:(int)anInt; -(void) writeToFile:(NSString *)path fromString:(NSString *)aString; (the names of the two methods are "writeToFile:fromInt:" and "writeToFile:fromString:"). ...
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jQuery selector for the label of a checkbox

...select the label using jQuery? Would it be easier to give the label tag an ID and select that using $(#labelId) ? 5 Answe...