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Is it possible only to declare a variable without assigning any value in Python?
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I'd heartily recommend that you read Other languages have "variables" (I added it as a related link) – in two minutes you'll know that Python has "names", not "variables".
val = None
# ...
if val is None:
val = any_object
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Captured variable in a loop in C#
.../ Just one variable
foreach (string x in foo) // And again, despite how it reads out loud
See section 7.14.4.2 of the C# 3.0 spec for more details of this, and my article on closures has more examples too.
Note that as of the C# 5 compiler and beyond (even when specifying an earlier version of C#...
How do I clear my local working directory in Git? [duplicate]
...l be removed.
Relevant links:
git-reset man page
git-clean man page
git ready "cleaning up untracked files" (as Marko posted)
Stack Overflow question "How to remove local (untracked) files from the current Git working tree")
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Browse and display files in a git repo without cloning
...u want would be lovely functionality if they could add it, but from what I read it's not very easy since getting history etc needs a lot of information to be local to git, and at that point you may as well have done a git fetch.
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How to determine if a string is a number with C++?
... For a game I am writing I just need to check if a line from the file I am reading is a number or not (I will know if it is a parameter this way). I wrote the below function which I believe was working smoothly (or I accidentally edited to stop it or I'm schizophrenic or Windows is schizophrenic):
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How to zip a whole folder using PHP
...e content of the folder except important.txt". Also I advice you to always read code before execute it.
– Dador
Apr 21 '15 at 23:12
1
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How can you program if you're blind?
...ll be based off these. I use windows xp as my operating system and Jaws to read what appears on the screen to me in synthetic speech. For java programming I use eclipse, since it’s a fully featured IDE that is accessible.
In my experience as a general rule java programs that use SWT as the GUI t...
Checking from shell script if a directory contains files
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How about the following:
if find /some/dir/ -maxdepth 0 -empty | read v; then echo "Empty dir"; fi
This way there is no need for generating a complete listing of the contents of the directory. The read is both to discard the output and make the expression evaluate to true only when somet...
What is the non-jQuery equivalent of '$(document).ready()'?
What is the non-jQuery equivalent of $(document).ready() ?
9 Answers
9
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How to programmatically take a screenshot on Android?
...png").getBytes("ASCII"));
os.flush();
os.close();
sh.waitFor();
then read img.png as Bitmap and use as your wish.
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