interleaved-map-calls.js

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// |reftest| skip-if(!this.hasOwnProperty('Iterator'))

//

/*---

esid: pending

description: Interleaved %Iterator.prototype%.map calls on the same iterator.

info:

features: [iterator-helpers]

---*/

const iterator = [1, 2, 3].values();

const mapped1 = iterator.map(x => x);

const mapped2 = iterator.map(x => 0);

assertEq(mapped1.next().value, 1);

assertEq(mapped2.next().value, 0);

assertEq(mapped1.next().value, 3);

assertEq(mapped1.next().done, true);

assertEq(mapped2.next().done, true);

if (typeof reportCompare == 'function')

  reportCompare(0, 0);