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How to initialize static variables
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I love PHP, but it's really odd sometimes.
– Marco Demaio
Nov 10 '11 at 21:46
6
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Most lightweight way to create a random string and a random hexadecimal number
...165037870407104
9.0292739868164062
5.2836320400238037
t3 only makes one call to the random module, doesn't have to build or read a list, and then does the rest with string formatting.
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impr...
Include constant in string without concatenating
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Yes it is (in some way ;) ):
define('FOO', 'bar');
$test_string = sprintf('This is a %s test string', FOO);
This is probably not what you were aiming for, but I think, technically this is not concatenation but a substitution and from this assumption, it includes a constant in a ...
Stash changes while keeping the changes in the working directory in Git
...stashes your changes, but keeps them in the working directory too? So basically a git stash; git stash apply in one step?
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Remove Identity from a column in a table
... @simon if you script out your changes, you'll see SSMS is actually creating a copy of the table w/o the identity property.
– Code Magician
Nov 22 '11 at 16:47
3
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Test if a variable is set in bash when using “set -o nounset”
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Nope, -, +, :+, and :- are all supported. The former detect whether the variable is set, and the latter detect whether it is set or empty. From man bash: "Omitting the colon results in a test only for a parameter that is unset."
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Line continuation for list comprehensions or generator expressions in python
...so you can pretty much do as you please. I'd personally prefer
[something_that_is_pretty_long
for something_that_is_pretty_long
in somethings_that_are_pretty_long]
The reason why \ isn't appreciated very much is that it appears at the end of a line, where it either doesn't stand out or needs...
新浪是如何分析处理32亿条实时日志的？ - 更多技术 - 清泛网 - 专注C/C++及内核技术
...x open files等；App Level的优化如Java运行环境版本的选择，ES_HEAP_SIZE的设置，修改bulk index的queue size等，另外还设置了默认的index template，目的是更改默认的shard，replica数并将string改为not_analyzed，开启doc_values以应对elasticsearch进程OOM...
Can I escape html special chars in javascript?
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I think regular expressions in replace() calls are unnecessary. Plain old single-character strings would do just as well.
– jamix
May 30 '14 at 14:47
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Count the number of commits on a Git branch
...e branch
git rev-list --count HEAD ^<branch-name>
This will count all commits ever made that are not on the branch-name as well.
Examples
git checkout master
git checkout -b test
<We do 3 commits>
git rev-list --count HEAD ^master
Result: 3
If your branch comes of a branch called...