test262/test/built-ins/Iterator/from/supports-iterator.js

30 lines
527 B
JavaScript

// Copyright (C) 2023 Michael Ficarra. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-iterator.from
description: >
Iterator.from supports non-iterable iterators
info: |
Iterator.from ( O )
includes: [compareArray.js]
features: [iterator-helpers]
flags: []
---*/
function* g() {
yield 0;
yield 1;
yield 2;
yield 3;
}
let n = g();
let iter = {
next() {
return n.next();
},
};
assert.compareArray(Array.from(Iterator.from(iter)), [0, 1, 2, 3]);