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How to split (chunk) a Ruby array into parts of X elements? [duplicate]
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Take a look at Enumerable#each_slice:
foo.each_slice(3).to_a
#=> [["1", "2", "3"], ["4", "5", "6"], ["7", "8", "9"], ["10"]]
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Getting only 1 decimal place [duplicate]
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Are you trying to represent it with only one digit:
print("{:.1f}".format(number)) # Python3
print "%.1f" % number # Python2
or actually round off the other decimal places?
round(number,1)
or even round strictly down?
math.floor(number*10)/10
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JavaScript: How to join / combine two arrays to concatenate into one array? [duplicate]
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var a = ['a','b','c'];
var b = ['d','e','f'];
var c = a.concat(b); //c is now an an array with: ['a','b','c','d','e','f']
console.log( c[3] ); //c[3] will be 'd'
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How to overwrite existing files in batch?
The following command copies and moves a file but I also need it to overwrite the file it's replacing.
8 Answers
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Remove and Replace Printed items [duplicate]
I was wondering if it was possible to remove items you have printed in Python - not from the Python GUI, but from the command prompt.
e.g.
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Convert the values in a column into row names in an existing data frame
I would like to convert the values in a column of an existing data frame into row names. Is is possible to do this without exporting the data frame and then reimporting it with a row.names = call?
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How to get file size in Java [duplicate]
I used this code to instantiate a File object:
3 Answers
3
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how to convert a string date into datetime format in python? [duplicate]
How do I convert a a string of datetime into datetime format in python so that it can be compared with another date?
2 Answ...
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bat 写注册表 及权限提升 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...， key不存在会自动创建，否则更新键值）：reg add "HKLM Software Microsoft Windows CurrentVersion ...写注册表脚本例子如下（key为“Path”， key不存在会自动创建，否则更新键值）：
reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\App Paths\Tes...