Welcome to ES discourse
system wrote: An informal place to explore and discuss ECMAScript spec. Posts: 1 Participants: 1 Read full topic
View ArticleWhere are global constructors defined in spec?
Ingvar Stepanyan wrote: Hi guys, I might be just missing something very simple, but I hope you can help me. I'm currently looking into list of APIs available to Web Workers and interfaces for...
View ArticleES6 IFFE paren placement
R. Mark Volkmann wrote: Not specifically an ES6 question, but is there a reason why it seems most people prefer this: (() => { ...}()); over this: (() => { ...})(); Posts: 6 Participants: 5 Read...
View ArticlePromise.all resolve order
R. Mark Volkmann wrote: Is the array of values passed to the callback for Promise.all guaranteed to be in the same order as the array of promises passed to it? I don't see this specified in the spec...
View ArticleFinally on paused generators during GC?
Bradley Meck wrote: Generators can enter a state where they are both paused and waiting on a finally block. function* foo() { let resource = $open(); try { yield resource; } finally { $close(); } } As...
View ArticleObservation: `import` is hoisted
Axel Rauschmayer wrote: Insight of the day: import is hoisted (due to ModuleDeclarationInstantiation). That’s why the following code works. bar(); import {foo} from 'mymodule'; function bar() { //...
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Reversing a string with codePoints
Bradley Meck wrote: We now have String.prototype[Symbol.iterator] which respects unicode code points. However, we do not have a great way to: reverse a string but preserve code points...
View ArticleYield during finally?
Bradley Meck wrote: I am a bit confused if yield during finally {} is supposed to pause execution of a generator. In most implementations this works and matches how you can override the...
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