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Learning TypeScript 2.x - Second Edition
book

Learning TypeScript 2.x - Second Edition

by Remo H. Jansen
April 2018
Beginner content levelBeginner
536 pages
13h 21m
English
Packt Publishing
Content preview from Learning TypeScript 2.x - Second Edition

Delegating to another generator (yield*)

We can use the yield* expression to delegate from one generator to another. The following code snippet defines two generator functions named g1 and g2. The g2 generator uses the yield* expression to delegate the iteration to the iterator created by g1:

function* g1() { yield 2; yield 3; yield 4; } function* g2() { yield 1; yield* g1(); yield 5; } var iterator1 = g2(); console.log(iterator1.next()); // {value: 1, done: false} console.log(iterator1.next()); // {value: 2, done: false} console.log(iterator1.next()); // {value: 3, done: false} console.log(iterator1.next()); // {value: 4, done: false} console.log(iterator1.next()); // {value: 5, done: false} console.log(iterator1.next()); // {value: undefined, ...
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Publisher Resources

ISBN: 9781788391474Supplemental Content