iteragain/dist/esm/unzip.js

Javascript Iterable/Iterator/Generator-function utilities.

import spy from './spy';
import tee from './tee';
import map from './map';
/**
 * The inverse of `zip` and `zipLongest`. This function disaggregates the elements of the input iterator. The nth
 * iterator in the returned tuple contains the nth element of each value in the input iterator. The length of the
 * returned tuple is determined by the length of the first value in the input iterator.
 */
export function unzip(arg) {
    const [[head], it] = spy(arg);
    const n = Array.isArray(head) ? head.length : 1;
    if (n < 2)
        return [it];
    return tee(it, n).map((it, i) => map(it, v => v[i]));
}
export default unzip;
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