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Removing all non-numeric characters from string in Python
How do we remove all non-numeric characters from a string in Python?
7 Answers
7
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Why is the Windows cmd.exe limited to 80 characters wide?
...(even in the days of 128mb machines and the one time you need it, you'll REALLY be glad you set it before hand. The width is a personal preference, I don't like seeing line wraps from my compiler except under extreme conditions, but others don't ever like to scroll.
– Bill K
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File Upload in WebView
...ew since last few
days and there is no progress. I googled and implemented all suggested
solutions but none works, like: solutions suggested here ,
and so on.
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Iterate an iterator by chunks (of n) in Python? [duplicate]
...y_list[i:i + chunk_size] for i in range(0, len(my_list), chunk_size)]
Finally, a solution that works on general iterators an behaves as desired is
def grouper(n, iterable):
it = iter(iterable)
while True:
chunk = tuple(itertools.islice(it, n))
if not chunk:
return...
What is a plain English explanation of “Big O” notation?
...a notation "Θ" (which is a two-side bound). In my experience, this is actually typical of discussions in non-academic settings. Apologies for any confusion caused.
Big O complexity can be visualized with this graph:
The simplest definition I can give for Big-O notation is this:
Big-O notation is ...
List all sequences in a Postgres db 8.1 with SQL
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The following query gives names of all sequences.
SELECT c.relname FROM pg_class c WHERE c.relkind = 'S';
Typically a sequence is named as ${table}_id_seq. Simple regex pattern matching will give you the table name.
To get last value of a sequence use the ...
How do I install a module globally using npm?
I recently installed Node.js and npm module on OSX and have a problem with the settings I think:
7 Answers
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What is the “Temporary ASP.NET Files” folder for?
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These are what's known as Shadow Copy Folders.
Simplistically....and I really mean it:
When ASP.NET runs your app for the
first time, it copies any assemblies
found in the /bin folder, copies any
source code files (found for example
in the App_Code folder) and parses
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How to prevent buttons from submitting forms
...just plain idiotic, and a huge mistake in the spec. I use buttons in forms all the time, and even if it were an edge case (which it isn't), it'd still make sense to have the default type be submit.
– dudewad
Oct 27 '15 at 22:54
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In C#, should I use string.Empty or String.Empty or “” to intitialize a string?
...person - so I suggest you find out what most people on your team like, and all go with that for consistency. Personally I find "" easier to read.
The argument that "" and " " are easily mistaken for each other doesn't really wash with me. Unless you're using a proportional font (and I haven't worke...