🚨 NEWS: List Comprehension, Generatori e Iteratori in Python: Guida Operativa

Ecco i punti chiave in breve:
💡 Se scrivi Python e usi ancora i cicli for per costruire liste o elaborare dati, stai sprecando risorse. Lo vediamo nei progetti che ci arrivano: codice più lento, memoria occupata inutilmente, carichi...

🚀 LINK: https://meteoraweb.com/analisi-dei-dati-e-metriche/list-comprehension-generatori-e-iteratori-in-python-guida-operativa

#listComprehension #generatori #iteratori #yield #lazyEvaluation

Just stumbled upon changing a Python list **in place** with list comprehension:

somelist[:] = [elem for elem in somelist if myPredicate(elem)]

Note the peculiar left-hand side of the assignment. Nice.😀

#python #listcomprehension #listmutation

I think comprehensions just clicked in my brain at last! 😂 It took reading the wiki page oddly enough. '...is a syntactic construct available in some languages for *creating* a list...'

Its that word *creating* I think that has made it click, and the fact that the underlined green part does the same as '.append'! 💪

Now I am wondering does it work with '.extend' though? 🤔 I guess not because you are looping thru iterables.

#python #listcomprehension

My new Post is out! Python: List Comprehensions
{ by @[email protected] } from @[email protected]

#python #listcomprehension https://tongere.hashnode.dev/python-list-comprehensions

This principle is old news in #ClojureScript (and any functional language, true). #listcomprehension
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RT @VladPasca5
JavaScript tip💡

Stop using "forEach" or "for" loops to loop through an array's items

Instead, start using "map" like in this example

👇

https://twitter.com/VladPasca5/status/1436735335539658753