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// |reftest| skip-if(!this.hasOwnProperty('Iterator'))
//
//
/*---
esid: pending
description: %Iterator.prototype%.take returns if the iterator is done.
info: >
Iterator Helpers proposal 2.1.5.4
2. Repeat,
...
c. Let next be ? IteratorStep(iterated, lastValue).
d. If next is false, return undefined.
features: [iterator-helpers]
---*/
let iter = [1, 2].values().take(3);
for (const expected of [1, 2]) {
const result = iter.next();
assertEq(result.value, expected);
assertEq(result.done, false);
}
let result = iter.next();
assertEq(result.value, undefined);
assertEq(result.done, true);
class TestIterator extends Iterator {
counter = 0;
next() {
return {done: ++this.counter >= 2, value: undefined};
}
closed = false;
return(value) {
this.closed = true;
return {done: true, value};
}
}
iter = new TestIterator();
let taken = iter.take(10);
for (const value of taken) {
assertEq(value, undefined);
}
result = taken.next();
assertEq(result.value, undefined);
assertEq(result.done, true);
assertEq(iter.counter, 2);
assertEq(iter.closed, false);
if (typeof reportCompare == 'function')
reportCompare(0, 0);
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