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How to check type of files without extensions in python?
...check file types? I want to check the file type and change the filename accordingly. Let's assume a function filetype(x) returns a file type like png . I want to do this:
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Are 2^n and n*2^n in the same time complexity?
...rces I've found on time complexity are unclear about when it is okay to ignore terms in a time complexity equation, specifically with non-polynomial examples.
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How to determine a Python variable's type?
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edited Apr 3 at 7:48
Boris
4,69255 gold badges4242 silver badges5252 bronze badges
answered Dec 31 '08 at 10:43
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In Unix, how do you remove everything in the current directory and below it?
I know this will delete everything in a subdirectory and below it:
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Setting an image for a UIButton in code
How do you set the image for a UIButton in code?
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Concat scripts in order with Gulp
Say, for example, you are building a project on Backbone or whatever and you need to load scripts in a certain order, e.g. underscore.js needs to be loaded before backbone.js .
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Convert timestamp in milliseconds to string formatted time in Java
...ue ( number of milliseconds elapsed from 1/1/1970 i.e. Epoch ) to time of format h:m:s:ms .
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C++ valarray vs. vector
I like vectors a lot. They're nifty and fast. But I know this thing called a valarray exists. Why would I use a valarray instead of a vector? I know valarrays have some syntactic sugar, but other than that, when are they useful?
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What is the instanceof operator in JavaScript?
The instanceof keyword in JavaScript can be quite confusing when it is first encountered, as people tend to think that JavaScript is not an object-oriented programming language.
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Switch statement for greater-than/less-than
... the solutions in the other answers I saw some things that I know are bad for performance. I was going to put them in a comment but I thought it was better to benchmark it and share the results. You can test it yourself. Below are my results (ymmv) normalized after the fastest operation in each brow...