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Most efficient method to groupby on an array of objects
...ceof Function ? key(x) : x[key]; let el = rv.find((r) => r && r.key === v); if (el) { el.values.push(x); } else { rv.push({ key: v, values: [x] }); ...
Python list directory, subdirectory, and files
I'm trying to make a script to list all directory, subdirectory, and files in a given directory.
I tried this:
7 Answers
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How to debug a GLSL shader?
...o output text, output something visually distinctive to the screen. For example you can paint something a specific color only if you reach the point of your code where you want add a printf. If you need to printf a value you can set the color according to that value.
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Getting list of parameter names inside python function [duplicate]
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Well we don't actually need inspect here.
>>> func = lambda x, y: (x, y)
>>>
>>> func.__code__.co_argcount
2
>>> func.__code__.co_varnames
('x', 'y')
>>>
>>> def func2(x,y=3):
... print(...
Docker: adding a file from a parent directory
...ce it tries to do it from its same directory (tbh, just what one would normally expect). Is there any way to do the same trick in Docker Hub?
– Marcel Hernandez
Mar 25 '16 at 20:31
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Best approach for designing F# libraries for use from both F# and C#
... function that you wrote, so I'll add some higher-level comments. First of all, you should read the F# Component Design Guidelines (referenced already by gradbot). This is a document that explains how to design F# and .NET libraries using F# and it should answer many of your questions.
When using F...
Calling dynamic function with dynamic number of parameters [duplicate]
I’m looking for a trick about this. I know how to call a dynamic, arbitrary function in JavaScript, passing specific parameters, something like this:
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How do I convert a double into a string in C++?
... Your C++ way won't work because operator << returns a std::ostream& rather than a stringstream&.
– Konrad Rudolph
Dec 1 '08 at 20:42
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How long is the SHA256 hash?
...h = hash('sha256', 'hello, world!');
var_dump($hash);
Will give you :
$ php temp.php
string(64) "68e656b251e67e8358bef8483ab0d51c6619f3e7a1a9f0e75838d41ff368f728"
i.e. a string with 64 characters.
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Pretty-Print JSON Data to a File using Python
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Well explained thank you -however not trying to be a &$&# but open/close to write a file isn't encourage, the with structure is generally preferable: with open("name_of_file.json", "w") as f: f.write(my_formatted_json_var) Advantage being you're sure the file will cl...