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'use strict';
function take(it, n) {
const result = [];
for (const e of it) {
if (--n < 0)
break;
result.push(e);
}
return result;
}
function previewMapIterator(it, n) {
return take(%MapIteratorClone(it), n);
}
function previewSetIterator(it, n) {
return take(%SetIteratorClone(it), n);
}
module.exports = { previewMapIterator, previewSetIterator };
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