November 2024
Intermediate to advanced
324 pages
8h 6m
French
Content preview from Programmation TypeScript
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Chapitre 6. Types avancés
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TypeScript dispose d'un système de types de classe mondiale qui prend en charge de puissantes fonctionnalités de programmation au niveau des types qui pourraient rendre jaloux même le programmeur Haskell le plus grincheux. Comme tu le sais maintenant, ce système de type n'est pas seulement incroyablement expressif, mais aussi facile à utiliser, et il rend la déclaration des contraintes et des relations de type simple, laconique, et la plupart du temps, inférée.
Nous avons besoin d'un système de types aussi expressif et inhabituel parce que JavaScript est tellement dynamique. La modélisation de choses telles que les prototypes, les liens dynamiques this, les surcharges de fonctions et les objets toujours changeants nécessite un système de types riche et une ceinture utilitaire d'opérateurs de types qui feraient faire à Batman un double regard.
Je commencerai ce chapitre par une plongée en profondeur dans le sous-typage, l'assignabilité, la variance et l'élargissement dans TypeScript, en donnant plus de définition aux intuitions que tu as développées au cours des derniers chapitres. Je couvrirai ensuite plus en détail les fonctions de vérification de type de TypeScript basées sur le flux de contrôle, y compris le raffinement et la totalité, et je poursuivrai avec certaines fonctions de programmation avancées au niveau du type ...
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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.