iteragain/dist/es5/shuffle.js

Javascript Iterable/Iterator/Generator-function utilities.

import toArray from './toArray';
/**
 * Collects all values from the input iterator, then shuffles the order of it's values.
 * @param seed A seed between 0 and 1.
 */
export function shuffle(arg, seed) {
    var _a;
    if (seed === void 0) { seed = Math.random(); }
    var values = toArray(arg);
    for (var i = values.length - 1; i > 0; i--) {
        var j = Math.floor(seed * (i + 1));
        _a = [values[j], values[i]], values[i] = _a[0], values[j] = _a[1];
    }
    return values[Symbol.iterator]();
}
export default shuffle;
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