Synchronous voice and video calling lets users communicate in real-time. Voice and video calls can be
made app-to-app, with or without the use of phone numbers. Voice calls between apps and landlines or feature
phones over traditional PSTN lines are also supported.
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Full Stack JavaScript Strategies: The Hidden Parts Every Mid-Level Developer Needs to Know (2025) by McGregor, Milecia Head First JavaScript Programming: A Learner's Guide to Modern JavaScript (2024) by Freeman, Eric, Robson, Elisabeth Eloquent JavaScript, 4th Edition (2024) by Haverbeke, Marijn JavaScript Crash Course: A Hands-On, Project-Based Introduction to Programming (2024) by Morgan, Nick JavaScript Cookbook: Programming the Web (2021) by Scott, Adam D., MacDonald, Matthew, Powers, Shelley JavaScript All-in-One For Dummies (2023) by Minnick, Chris JavaScript Everywhere: Building Cross-Platform Applications with GraphQL, React, React Native, and Electron (2020) by Scott, Adam D. JavaScript: The Comprehensive Guide to Learning Professional JavaScript Programming (Rheinwerk Computing) (2022) by Ackermann, Philip JavaScript: The Definitive Guide: Master the World's Most-Used Programming Language (2020) by Flanagan, David Eloquent JavaScript, 3rd Edition: A Modern Introduction to Programming (2018) by Haverbeke, Marijn JavaScript from Beginner to Professional: Learn JavaScript quickly by building fun, interactive, and dynamic web apps, games, and pages (2021) by Laurence Lars Svekis, Maaike van Putten, Rob Percival
