Video details

What’s new in V8/JavaScript


What exciting things happened in the JavaScript language and the V8 engine in 2019? Shu and Leszek take a tour of some new features and improvements. For JavaScript, learn about new syntax, like optional chaining and nullish coalescing, that make expressing common patterns a breeze, as well as the powerful new weak references that may help plug memory leaks. For V8, learn how the engine got faster with streaming parsing and slimmer with pointer compression.
Resources: V8 blog post archive →
Optional chaining →
Nullish coalescing →
Weak references and finalizers →
Pointer Compression in V8 →
A lighter V8 →
Related Playlist: Day 2 →
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Speaker: Leszek Swirski, Shu-yu Guo
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