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Convert JS Object to form data

... and values from that object to formData. You haven't posted any code, so it's a general example; var form_data = new FormData(); for ( var key in item ) { form_data.append(key, item[key]); } $.ajax({ url : 'http://example.com/upload.php', data : form_data, process...
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Why does Google prepend while(1); to their JSON responses?

... It prevents JSON hijacking, a major JSON security issue that is formally fixed in all major browsers since 2011 with ECMAScript 5. Contrived example: say Google has a URL like mail.google.com/json?action=inbox which returns ...
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When should std::move be used on a function return value? [duplicate]

...std::move(foo); the move is superfluous because of 12.8/32: When the criteria for elision of a copy operation are met or would be met save for the fact that the source object is a function parameter, and the object to be copied is designated by an lvalue, overload resolution to select the ...
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How to run a program without an operating system?

How do you run a program all by itself without an operating system running? Can you create assembly programs that the computer can load and run at startup, e.g. boot the computer from a flash drive and it runs the program that is on the CPU? ...
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Does “display:none” prevent an image from loading?

Every responsive website development tutorial recommends using the display:none CSS property to hide content from loading on mobile browsers so the website loads faster. Is it true? Does display:none not load the images or does it still load the content on mobile browser? Is there any way to pre...
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What, exactly, is needed for “margin: 0 auto;” to work?

I know that setting margin: 0 auto; on an element is used to centre it (left-right). However, I know that the element and its parent must meet certain criteria for the auto margin to work, and I can never seem to get the magic right. ...
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How can I detect if a selector returns null?

... My favourite is to extend jQuery with this tiny convenience: $.fn.exists = function () { return this.length !== 0; } Used like: $("#notAnElement").exists(); More explicit than using length. ...
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What is JSON and why would I use it?

I've looked on wikipedia and Googled it and read the official documentation, but I still haven't got to the point where I really understand what JSON is, and why I'd use it. ...
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Tools for creating Class Diagrams [closed]

Please suggest tools for creating Class Diagrams with the following criteria: 13 Answers ...
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port forwarding in windows

... I've solved it, it can be done executing: netsh interface portproxy add v4tov4 listenport=4422 listenaddress=192.168.1.111 connectport=80 connectaddress=192.168.0.33 To remove forwarding: netsh interface portproxy delete v4tov4 liste...