April 2025
Intermediate to advanced
124 pages
2h 8m
Italian
Content preview from Tidy First?
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Capitolo 12. Aiuto per l'estrazione
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Vedi un blocco di codice all'interno di una routine che ha uno scopo ovvio e un'interazione limitata con il resto del codice della routine. Estrailo come routine di aiuto. Dai un nome alla routine in base allo scopo (non al funzionamento della routine).
I più attenti al refactoring riconosceranno "Extract Method" in questo riordino. Eseguire questo riordino/refactoring può essere complicato senza un refactoring automatico. Ecco perché dovresti trovarti in un ambiente che offre il refactoring automatico. Siamo nel 21° secolo, dopotutto.
Vorrei menzionare un paio di casi speciali di estrazione di un helper. Uno di questi è quando devi modificare un paio di righe all'interno di una routine più grande: estrai quelle righe come helper, modifica solo le righe dell'helper e poi, se è sensato, rimetti in linea l'helper nella routine chiamante. (Di solito ci si affeziona all'helper e lo si tiene con sé). Quindi, questo:
routine()
...stuff that stays the same...
...stuff that needs to change...
...stuff that stays the same...
diventa:
helper()
...stuff that needs to change...
routine()
...stuff that stays the same...
helper()
...stuff that stays the same...
(Se hai letto in precedenza, riconoscerai che si tratta di coerenza, ovvero di creare un elemento coesivo. In caso contrario, non preoccuparti, ci arriveremo). ...
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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.
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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.