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Complete Working Sample of the Gmail Three-Fragment Animation Scenario?

...at I'll refer to as "the Gmail three-fragment animation" scenario. Specifically, we want to start with two fragments, like this: ...
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TLSF源码及算法介绍 - 开源 & Github - 清泛网 - 专注C/C++及内核技术

...及时。英文好的同学请直接看论文《TLSF: a New Dynamic Memory Allocator f 官网地址:http://www.gii.upv.es/tlsf/ 官网的代码应该是主分支,github上的几个仓库更新不是那么及时。 英文好的同学请直接看论文《TLSF: a New Dynamic Memory Allocator fo...
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SQL - Query to get server's IP address

... the address you would give to someone if they can't use the server's NetBios name or FQDN for some reason. I advice strongly against using this answer. Enabling the shell out is a very bad idea on a production SQL Server. ...
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Principal component analysis in Python

... Months later, here's a small class PCA, and a picture: #!/usr/bin/env python """ a small class for Principal Component Analysis Usage: p = PCA( A, fraction=0.90 ) In: A: an array of e.g. 1000 observations x 20 variables, 1000 rows x 20 colum...
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One-liner to check whether an iterator yields at least one element?

... Similarly if you need to check if the iterator is empty, one could use all(False for _ in iterator) will check if the iterator is empty. (all returns True if the iterator is empty, otherwise it stops when it sees the first False element) – KGardevoir Apr 3 ...
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Creating temporary files in bash

... The mktemp(1) man page explains it fairly well: Traditionally, many shell scripts take the name of the program with the pid as a suffix and use that as a temporary file name. This kind of naming scheme is predictable and the race condition it creates is easy for an attacker t...
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URL rewriting with PHP

... You can essentially do this 2 ways: The .htaccess route with mod_rewrite Add a file called .htaccess in your root folder, and add something like this: RewriteEngine on RewriteRule ^/?Some-text-goes-here/([0-9]+)$ /picture.php?id=$1 Thi...
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How do I clear only a few specific objects from the workspace?

I would like to remove some data from the workspace. I know the "Clear All" button will remove all data. However, I would like to remove just certain data. ...
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Python unittest - opposite of assertRaises?

...the correct solution in fact. The solution proposed by user9876 is conceptually flawed: if you test for the non-raising of say ValueError, but ValueError is instead raised, your test must exit with a failure condition, not an error one. On the other hand, if in running the same code you would raise ...
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Rails 2.3-style plugins and deprecation warnings running task in Heroku

... Yep, I realize that all the warnings came from my Heroku scripts and logs. I'll assume that (a) it's the plugin injections and (b) that the Heroku team will fix this before it becomes an actual problem. – fearless_fool ...