April 2025
Intermediate to advanced
124 pages
2h 8m
Italian
Content preview from Tidy First?
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Capitolo 10. Parametri espliciti
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Stai leggendo del codice che vuoi modificare e ti accorgi che alcuni dei dati su cui lavora non sono stati passati esplicitamente alla routine. Come puoi rendere chiari gli input?
Dividi la routine. La parte superiore raccoglie i parametri di e li passa esplicitamente alla seconda parte.
È comune vedere blocchi di parametri passati in una mappa. Questo rende difficile la lettura e la comprensione dei dati richiesti. Inoltre, si apre l'orribile abuso di modificare i parametri per utilizzarli (implicitamente) in un secondo momento.
Ad esempio, se vedi questo:
params = { a: 1, b: 2 }
foo(params)
function foo(params)
...params.a... ...params.b...
Esplicita i parametri dividendo foo:
function foo(params)
foo_body(params.a, params.b)
function foo_body(a, b)
...a... ...b...
Un altro caso di parametri espliciti è quando trovi l'uso di variabili d'ambiente nelle viscere del codice. Rendi espliciti i parametri e preparati a farli risalire nella catena delle funzioni chiamanti. In questo modo il tuo codice sarà più facile da leggere, testare e analizzare.
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.