iteragain/dist/es5/internal/CycleIterator.js

Javascript Iterable/Iterator/Generator-function utilities.

import toIterator from '../toIterator';
/**
 * Cycles through the input `iterator`'s values a certain number of `times`. So when the input iterator is done, the
 * next iterator result will cycle back to the first value of the input iterator.
 */
var CycleIterator = /** @class */ (function () {
    function CycleIterator(iterator, times) {
        this.iterator = iterator;
        this.times = times;
        this.values = [];
    }
    CycleIterator.prototype[Symbol.iterator] = function () {
        return this;
    };
    CycleIterator.prototype.next = function () {
        var _a;
        var args = [];
        for (var _i = 0; _i < arguments.length; _i++) {
            args[_i] = arguments[_i];
        }
        var next = (_a = this.iterator).next.apply(_a, args);
        if (next.done && this.times-- > 0) {
            this.iterator = toIterator(this.values.splice(0, this.values.length));
            return this.next.apply(this, args);
        }
        this.values.push(next.value);
        return next;
    };
    return CycleIterator;
}());
export { CycleIterator };
export default CycleIterator;
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