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How do I close all open tabs at once?
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Shortest/simplest/fastest way would be:
:qa
To save work in all tabs and quit:
:wqa
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How to “test” NoneType in python?
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It can also be done with isinstance as per Alex Hall's answer :
>>> NoneType = type(None)
>>> x = None
>>> type(x) == NoneType
True
>>> isinstance(x, NoneType)
True
isinstance is also intuitive but there is the complication that it re...
How can I print each command before executing? [duplicate]
... Also it may be usefull the kind of "logical brackets": OPT=$- to save all the keys, and set -$OPT to restore.
– Tomilov Anatoliy
Jul 10 '14 at 3:39
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Convert string to variable name in python [duplicate]
... Even in the very rare cases where you do have a good reason to dynamically create a variable, this is not the way to do it; just use setattr. And even when setattr is inappropriate for whatever reason, being explicit and modifying locals or globals as appropriate is still better than exec.
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Redirecting Output from within Batch file
... good and fast way that only opens and positions the file once
@echo off
call :sub >output.txt
exit /b
:sub
command1
command2
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commandN
Edit 2020-04-17
Every now and then you may want to repeatedly write to two or more files. You might also want different messages on the screen. It is sti...
Which version of the git file will be finally used: LOCAL, BASE or REMOTE?
When there's a collison during git merge , I open a mergetool called Meld . It opens three files LOCAL, BASE and REMOTE. As I've read LOCAL is my local branch, BASE is common ancestor and REMOTE is the branch to be merged.
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【解决】php7.x后报错Warning: Use of undefined constant PRE - assumed问...
...。具体步骤如下：1、打开 php ini2、设置 error_reporting = E_ALL & ~E_DEPRECATED & 解决此种问题也不难，只是报了”Warning警告“，只需要关闭”PHP错误提示“就行了。步骤如下：
1、打开 php.ini
2、设置 error_reporting = E_ALL & ~E_DEPRECATED & ~...
css selector to match an element without attribute x [duplicate]
...wever, I'm running into problems. I need a simple declaration that matches all these elements:
3 Answers
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How to find common elements from multiple vectors?
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@GioraSimchoni how could you get c(1,1,3), if that is really what you want?
– StatsSorceress
Aug 25 '18 at 18:01
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How do you divide each element in a list by an int?
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The way you tried first is actually directly possible with numpy:
import numpy
myArray = numpy.array([10,20,30,40,50,60,70,80,90])
myInt = 10
newArray = myArray/myInt
If you do such operations with long lists and especially in any sort of scientific com...