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Generator.prototype.return() - JavaScript | MDN

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Generator.prototype.return()

Baseline Widely available

This feature is well established and works across many devices and browser versions. Its been available across browsers since 2016 ..

return() .

In this article

gen.return(value)

value

.

, .

return()

return.

js
function* gen() {
  yield 1;
  yield 2;
  yield 3;
}

var g = gen();

g.next(); // { value: 1, done: false }
g.return("foo"); // { value: "foo", done: true }
g.next(); // { value: undefined, done: true }

return(value) , "" , "" . , value , .next(). , value .

js
function* gen() {
  yield 1;
  yield 2;
  yield 3;
}

var g = gen();
g.next(); // { value: 1, done: false }
g.next(); // { value: 2, done: false }
g.next(); // { value: 3, done: false }
g.next(); // { value: undefined, done: true }
g.return(); // { value: undefined, done: true }
g.return(1); // { value: 1, done: true }

Specification
ECMAScript 2027 LanguageSpecification
# sec-generator.prototype.return


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