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Is there a performance difference between i++ and ++i in C++?

...f you don't have a specific reason to use i++.] For C++, the answer is a bit more complicated. If i is a simple type (not an instance of a C++ class), then the answer given for C ("No there is no performance difference") holds, since the compiler is generating the code. However, if i is an instan...
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How to programmatically send a 404 response with Express/Node?

...'s a dedicated status function for this on the response object. Just chain it in somewhere before you call send. res.status(404) // HTTP status 404: NotFound .send('Not found'); share | i...
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Convert form data to JavaScript object with jQuery

...dden fields which have the same name as real inputs as they will get overwritten. share | improve this answer | follow | ...
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Using node.js as a simple web server

...rver. Every GET request to example.com should get index.html served to it but as a regular HTML page (i.e., same experience as when you read normal web pages). ...
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Check if SQL Connection is Open or Closed

How do you check if it is open or closed I was using 9 Answers 9 ...
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How can you profile a Python script?

...m time to run or people boast of how fast their particular solution runs. With Python, sometimes the approaches are somewhat kludgey - i.e., adding timing code to __main__ . ...
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Array.push() if does not exist?

How can I push into an array if neither values exist? Here is my array: 23 Answers 23 ...
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Looping through localStorage in HTML5 and JavaScript

...as thinking I could just loop through localStorage like a normal object as it has a length. How can I loop through this? 7 ...
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what's the correct way to send a file from REST web service to client?

...e just started to develop REST services, but I've come across a difficult situation: sending files from my REST service to my client. So far I've gotten the hang of how to send simple data types (strings, integers, etc) but sending a file is a different matter since there are so many file formats th...
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HTML anchor link - href and onclick both?

...tes some JavaScript and then proceeds to go wherever the href was taking it. Invoking a function that executes my JavaScript and then sets window.location or top.location to the href location doesn't work for me. ...