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What is a “callable”?
... given object is callable or not; or better yet just call it and catch TypeError later. callable is removed in Python 3.0 and 3.1, use callable = lambda o: hasattr(o, '__call__') or isinstance(o, collections.Callable).
Example, a simplistic cache implementation:
class Cached:
def __init__(self...
How to insert a row in an HTML table body in JavaScript
I have an HTML table with a header and a footer:
9 Answers
9
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Easiest way to flip a boolean value?
...;first().lights[PATTERN1_LIGHT + i].value ^= 1 is much more readable, less error prone, and fewer characters than the original code.
– Vortico
Oct 31 '17 at 10:40
3
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Regex to Match Symbols: !$%^&*()_+|~-=`{}[]:";'?,./
I'm trying to create a Regex test in JavaScript that will test a string to contain any of these characters:
6 Answers
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How can I call a custom Django manage.py command directly from a test driver?
...ork.
– Igor Sobreira
Dec 5 '12 at 2:05
The opening paragraph applies to any boundary situation. Move your own biz logi...
Is there a way to avoid null check before the for-each loop iteration starts? [duplicate]
Every time I have to iterate over a collection I end up checking for null, just before the iteration of the for-each loop starts. Like this:
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What's the function like sum() but for multiplication? product()?
Python's sum() function returns the sum of numbers in an iterable.
8 Answers
8
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How do I uninstall nodejs installed from pkg (Mac OS X)?
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got 2 errors as rm: /usr/local/bin/node: No such file or directory, rm: /usr/local/share/man/man1/node.1: No such file or directory
– vikramvi
Jul 22 '19 at 10:12
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fatal: early EOF fatal: index-pack failed
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This error may occur for memory needs of git. You can add these lines to your global git configuration file, which is .gitconfig in $USER_HOME, in order to fix that problem.
[core]
packedGitLimit = 512m
packedGitWindowSize = 51...
API to automatically upload apk to Google Play? [closed]
Is there any API or tool that enables me to automatically upload an APK to Google Play? I want to automatically publish customized apps to my account without any manual steps or graphical interface.
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