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What is %2C in a URL?
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623
Check out http://www.asciitable.com/
Look at the Hx, (Hex) column; 2C maps to ,
Any unusual en...
Less aggressive compilation with CSS3 calc
The Less compilers that I'm using ( OrangeBits and dotless 1.3.0.5 ) are aggressively translating
4 Answers
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validation custom message for rails 3
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edited Mar 4 '15 at 3:20
Andrew Hendrie
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an...
Python Charts库(Highcharts API的封装) - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...到类似下面的路径
'/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages'
然后进入目录下的chart目录,拷贝下图这些文件替换
1.If you want to plot a single series, you can use the name argument:
charts.plot(data, name='My list')
s...
T-SQL datetime rounded to nearest minute and nearest hours with using functions
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declare @dt datetime
set @dt = '09-22-2007 15:07:38.850'
select dateadd(mi, datediff(mi, 0, @dt), 0)
select dateadd(hour, datediff(hour, 0, @dt), 0)
will return
2007-09-22 15:07:00.000
2007-09-22 15:00:00.000
The above just truncates the seconds and minutes, producing...
Return 0 if field is null in MySQL
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332
Use IFNULL:
IFNULL(expr1, 0)
From the documentation:
If expr1 is not NULL, IFNULL() ret...
How to swap keys and values in a hash
... (in essence, by letting you access keys through values):
{a: 1, b: 2, c: 3}.key(1)
=> :a
If you want to keep the inverted hash, then Hash#invert should work for most situations:
{a: 1, b: 2, c: 3}.invert
=> {1=>:a, 2=>:b, 3=>:c}
BUT...
If you have duplicate values, invert will...
`if __name__ == '__main__'` equivalent in Ruby
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3 Answers
3
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