November 2024
Intermediate to advanced
372 pages
9h 2m
French
Content preview from Maîtriser la brillance
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Partie III. Maîtriser la réactivité
Tu as maintenant un paquet de techniques utiles à ton actif, ce qui te donne la possibilité de créer un large éventail d'applis utiles. Ensuite, nous allons nous intéresser à la théorie de la réactivité qui sous-tend la magie de Shiny :
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Au chapitre 13, tu apprendras pourquoi le modèle de programmation réactive est nécessaire et un peu de l'histoire de la programmation réactive en dehors de R.
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Au chapitre 14, tu apprendras tous les détails du graphe réactif, qui détermine exactement quand les composants réactifs sont mis à jour.
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Au chapitre 15, tu découvriras les éléments sous-jacents, en particulier les observateurs et l'invalidation chronométrée.
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Au chapitre 16, tu apprendras comment échapper aux contraintes du graphe réactif en utilisant
reactiveVal()etobserve().
Tu n'as certainement pas besoin de comprendre tous ces détails pour le développement courant d'applications Shiny. Mais améliorer ta compréhension t'aidera à écrire des applications correctes dès le départ, et lorsque quelque chose se comporte de manière inattendue, tu pourras plus rapidement cibler le problème sous-jacent.
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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.