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How to check if a file is a valid image file?
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A lot of times the first couple chars will be a magic number for various file formats. You could check for this in addition to your exception checking above.
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How to duplicate sys.stdout to a log file?
Edit: Since it appears that there's either no solution, or I'm doing something so non-standard that nobody knows - I'll revise my question to also ask: What is the best way to accomplish logging when a python app is making a lot of system calls?
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Strange \n in base64 encoded string in Ruby
...so adds the newlines. I would consider it a design bug that this is not optional.
You could either remove the newlines yourself, or if you're using rails, there's ActiveSupport::CoreExtensions::Base64::Encoding with the encode64s method.
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Putting git hooks into repository
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I generally agree with Scytale, with a couple additional suggestions, enough that it's worth a separate answer.
First, you should write a script which creates the appropriate symlinks, especially if these hooks are about enforcing policy or creating useful notifications. Peo...
Animate the transition between fragments
I'm trying to animate the transition between fragments. I got the answer from the following
Android Fragments and animation
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How to see full symlink path
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This question was about Linux, y'all.
– Ian Stapleton Cordasco
Apr 9 '16 at 18:28
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ReactJS - Does render get called any time “setState” is called?
...nd it's responsible to determine "should component update (run render function)?" every time you change state or pass new props from parent component.
You can write your own implementation of shouldComponentUpdate method for your component, but default implementation always returns true - meaning a...
Simplest SOAP example
... Test</title>
<script type="text/javascript">
function soap() {
var xmlhttp = new XMLHttpRequest();
xmlhttp.open('POST', 'https://somesoapurl.com/', true);
// build SOAP request
var sr =
'<?xml version="1.0" ...
Why and when to use Node.js? [duplicate]
...t to use Node.js if you want to write highly scaling and efficient applications using non-blocking I/O whilst still having a high level scripting language available. If needed, you can hand optimise parts of your code by writing extensions in C.
There are plenty of OS libraries for Node.js that wil...
Method overloading in Objective-C?
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It may be worth mentioning that even if Objective-C doesn't support method overloading, Clang + LLVM does support function overloading for C. Although not quite what you're looking for, it could prove useful in some situations (for example, when...