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Finding all cycles in a directed graph
...
@Gleno Well, if you mean that you can use Tarjan to find all cycles in the graph instead of implementing the rest, you are wrong. Here, you can see the difference between strongly connected components and all cycles (The cycles c-d and g-...
In Python, how do I determine if an object is iterable?
...iterable object and with them the above code doesn't work well. As a real life example we can use Faker. The above code reports it being iterable but actually trying to iterate it causes an AttributeError (tested with Faker 4.0.2):
>>> from faker import Faker
>>> fake = Faker()
&g...
How can you use an object's property in a double-quoted string?
...ll be replaced by that variable's value:
$foo = 2
"$foo"
becomes
"2"
If you don't want that you have to use single quotes:
$foo = 2
'$foo'
However, if you want to access properties, or use indexes on variables in a double-quoted string, you have to enclose that subexpression in $():
$foo =...
How does zip(*[iter(s)]*n) work in Python?
How does zip(*[iter(s)]*n) work? What would it look like if it was written with more verbose code?
6 Answers
...
How to loop over files in directory and change path and add suffix to filename
I need to write a script that starts my program with different arguments, but I'm new to Bash. I start my program with:
5 A...
How can I tell if I'm running in 64-bit JVM or 32-bit JVM (from within a program)?
How can I tell if the JVM in which my application runs is 32 bit or 64-bit? Specifically, what functions or properties I can used to detect this within the program?
...
Access lapply index names inside FUN
... will pass in the "element" (here the index) to the first argument not specified among the extra ones. In this case, I specify y and n, so there's only i left...
Which produces the following:
[[1]]
[1] "a 11"
[[2]]
[1] "b 12"
[[3]]
[1] "c 13"
UPDATE Simpler example, same result:
lapply(seq_al...
Recursion in Angular directives
...on(element, link){
// Normalize the link parameter
if(angular.isFunction(link)){
link = { post: link };
}
// Break the recursion loop by removing the contents
var contents = element.contents().remove();
var comp...
Check if a value is an object in JavaScript
How do you check if a value is an object in JavaScript?
46 Answers
46
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How can I pass a list as a command-line argument with argparse?
...t with argparse. Ever.
Let's take a look in more detail at some of the different ways one might try to do this, and the end result.
import argparse
parser = argparse.ArgumentParser()
# By default it will fail with multiple arguments.
parser.add_argument('--default')
# Telling the type to be a...