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Regex for password must contain at least eight characters, at least one number and both lower and up
... edited Sep 14 '18 at 10:41
Wiktor Stribiżew
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answered Jan 30 '14 at 12:44
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Is it possible to have multiple statements in a python lambda expression?
...several different answers I can give here, from your specific question to more general concerns. So from most specific to most general:
Q. Can you put multiple statements in a lambda?
A. No. But you don't actually need to use a lambda. You can put the statements in a def instead. i.e.:
def seco...
How to debug Ruby scripts [closed]
...llowing Ruby code from the Internet and made a few changes but it doesn't work.
17 Answers
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What is a “callable”?
...if the argument is either:
an instance of a class with a __call__ method or
is of a type that has a non null tp_call (c struct) member which indicates callability otherwise (such as in functions, methods etc.)
The method named __call__ is (according to the documentation)
Called when the inst...
Difference between \b and \B in regex
I am reading a book on regular expression and I came across this example for \b :
9 Answers
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Difference between len() and .__len__()?
Is there any difference between calling len([1,2,3]) or [1,2,3].__len__() ?
4 Answers
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Convert a positive number to negative in C#
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or even shorter myInt *= - 1?
– nawfal
Nov 3 '13 at 16:55
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How to urlencode data for curl command?
I am trying to write a bash script for testing that takes a parameter and sends it through curl to web site. I need to url encode the value to make sure that special characters are processed properly. What is the best way to do this?
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How to check if a symlink exists
...urns true if the "file" exists and is a symbolic link (the linked file may or may not exist). You want -f (returns true if file exists and is a regular file) or maybe just -e (returns true if file exists regardless of type).
According to the GNU manpage, -h is identical to -L, but according to the ...
Use rvmrc or ruby-version file to set a project gemset with RVM?
...M, the Ruby Version Manager to specify a Ruby version and a set of gems for each of my Rails projects.
5 Answers
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