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Number.sign() in javascript
Wonder if there are any nontrivial ways of finding number's sign ( signum function )?
May be shorter / faster / more elegant solutions than the obvious one
...
Find which commit is currently checked out in Git
...l
%at author date, UNIX timestamp
%aI author date, strict ISO 8601 format
%cn committer name
%ce committer email
%ct committer date, UNIX timestamp
%cI committer date, strict ISO 8601 format
%s subject
%f sanitized subject line, suitable for a filename
%gD reflog selector, e.g., refs/stash@{1}
%gd s...
How do you get the length of a string?
... to be computed as following:
[..."????"].length
or create an auxiliary function
function uniLen(s) {
return [...s].length
}
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动态追踪（Dynamic Tracing）技术漫谈 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...的工具输出这些长尾 DNS 查询的具体内容，发现都是涉及 CNAME 展开。显然，这与OpenResty 无关了，而进一步的排查和优化也有了明确的方向。
第三个例子是，我们曾注意到某一个机房的机器存在比例明显高于其他机房的网络超时...
Undo git mv (rename)
...
Lol. That's fun.
– Dmitriy Dokshin
Mar 31 at 21:50
Did ...
String isNullOrEmpty in Java? [duplicate]
...ing just has whitespace(s). What does "empty" means in real world ? Sounds fun to me!
– asyncwait
Feb 27 '14 at 15:01
...
Time complexity of Sieve of Eratosthenes algorithm
...ause we need an array of n elements in any case?
– a_123
Mar 25 '16 at 21:35
...
Event system in Python
...ent()
>>> e()
>>> e.append(f)
>>> e(123)
f(123)
>>> e.remove(f)
>>> e()
>>> e += (f, g)
>>> e(10)
f(10)
g(10)
>>> del e[0]
>>> e(2)
g(2)
"""
def __call__(self...
How to make a chain of function decorators?
...ocumentation to see how decorators work. Here is what you asked for:
from functools import wraps
def makebold(fn):
@wraps(fn)
def wrapped(*args, **kwargs):
return "<b>" + fn(*args, **kwargs) + "</b>"
return wrapped
def makeitalic(fn):
@wraps(fn)
def wrapped...
printf() formatting for hex
... output is 0XC68491C0, not 0x43A66C31C68491C0
– 123iamking
May 7 '16 at 4:16
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