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leading zeros in rails
...min , both integers in my application. For hr field, if the user enters "1" I would like Rails to automatically pad it to "01" before saving it to the database. Also for the min field if the user enter "0" it should put in as "00".
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Make xargs execute the command once for each line of input
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Correct way to convert size in bytes to KB, MB, GB in JavaScript
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Get a random boolean in python?
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Adam's answer is quite fast, but I found that random.getrandbits(1) to be quite a lot faster. If you really want a boolean instead of a long then
bool(random.getrandbits(1))
is still about twice as fast as random.choice([True, False])
Both solutions need to import random
If utmost spe...
In C++, is it still bad practice to return a vector from a function?
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edited Nov 12 '14 at 17:16
Mgetz
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linux下iptables配置详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...建议先去看看.开始配置我们来配置一个filter表的防火墙.(1)查看本机关于IPTABLES的设置情况[root@tp ~]...如果你的IPTABLES基础知识还不了解,建议先去看看.
开始配置
我们来配置一个filter表的防火墙.
(1)查看本机关于IPTABLES的设置情...
How to calculate cumulative normal distribution?
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Here's an example:
>>> from scipy.stats import norm
>>> norm.cdf(1.96)
0.97...
How do you create a yes/no boolean field in SQL server?
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