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Last change
on this file since e4c61dd was e4c61dd, checked in by istevanoska <ilinastevanoska@…>, 6 months ago |
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Prototype 1.1
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-
Property mode
set to
100644
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File size:
530 bytes
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| 1 | export default function superset(values, other) {
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| 2 | const iterator = values[Symbol.iterator](), set = new Set();
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| 3 | for (const o of other) {
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| 4 | const io = intern(o);
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| 5 | if (set.has(io)) continue;
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| 6 | let value, done;
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| 7 | while (({value, done} = iterator.next())) {
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| 8 | if (done) return false;
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| 9 | const ivalue = intern(value);
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| 10 | set.add(ivalue);
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| 11 | if (Object.is(io, ivalue)) break;
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| 12 | }
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| 13 | }
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| 14 | return true;
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| 15 | }
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| 16 |
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| 17 | function intern(value) {
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| 18 | return value !== null && typeof value === "object" ? value.valueOf() : value;
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| 19 | }
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