Source code
Revision control
Copy as Markdown
Other Tools
// |reftest| skip-if(!this.hasOwnProperty('Iterator'))
//
//
/*---
esid: pending
description: `take` and `drop` throw eagerly when passed negative numbers, after rounding towards 0.
info: >
Iterator Helpers proposal 2.1.5.4 and 2.1.5.5
features: [iterator-helpers]
---*/
const iter = [].values();
const methods = [
value => iter.take(value),
value => iter.drop(value),
];
for (const method of methods) {
assertThrowsInstanceOf(() => method(-1), RangeError);
assertThrowsInstanceOf(() => method(-Infinity), RangeError);
assertThrowsInstanceOf(() => method(NaN), RangeError);
assertThrowsInstanceOf(() => method(-NaN), RangeError);
method(-0);
method(-0.9);
}
if (typeof reportCompare == 'function')
reportCompare(0, 0);