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What is the difference between Amazon S3 and Amazon EC2 instance?

I need to create a web application using php mysql and html. The no.of requests and data will be very high. I need Amazon server space. ...
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What is the maximum size of a web browser's cookie's key?

... The 4K limit you read about is for the entire cookie, including name, value, expiry date etc. If you want to support most browsers, I suggest keeping the name under 4000 bytes, and the overall cookie size under 4093 bytes. One thing to be careful of: if the name is too big you ...
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Standard concise way to copy a file in Java?

It has always bothered me that the only way to copy a file in Java involves opening streams, declaring a buffer, reading in one file, looping through it, and writing it out to the other steam. The web is littered with similar, yet still slightly different implementations of this type of solution. ...
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What do the python file extensions, .pyc .pyd .pyo stand for?

... .py: This is normally the input source code that you've written. .pyc: This is the compiled bytecode. If you import a module, python will build a *.pyc file that contains the bytecode to make importing it again later easier (and faster). .pyo: This w...
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Can I arrange repositories into folders on Github?

I am new to git and what I am doing now is to upload all my recent projects as repositories to github. There are a lot of different projects like webdesign, wordpress themes and different types of applications. And some of these also belong to bigger projects because they were about testing some stu...
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How to revert a Git Submodule pointer to the commit stored in the containing repository?

I have a git submodule in my main git repo. As I understand it, the main repo stores a SHA value (somewhere...), pointing to the specific commit of the submodule that it is "linked to". ...
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What's the difference between libev and libevent?

Both 2 libs are designed for async i/o scheduling, and both engages epoll on linux, and kqueue on FreeBSD, etc. 2 Answers ...
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Chrome extension: accessing localStorage in content script

I have an options page where the user can define certain options and it saves it in localStorage: options.html 3 Answers ...
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Is python's sorted() function guaranteed to be stable?

... Yes, the intention of the manual is indeed to guarantee that sorted is stable and indeed that it uses exactly the same algorithm as the sort method. I do realize that the docs aren't 100% clear about this identity; doc patches are alw...
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What do (lambda) function closures capture?

Recently I started playing around with Python and I came around something peculiar in the way closures work. Consider the following code: ...