iteragain/dist/cjs/reduce.js

Javascript Iterable/Iterator/Generator-function utilities.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.reduce = reduce;
const emptyIteratorError_1 = require("./internal/emptyIteratorError");
const toIterator_1 = require("./toIterator");
function reduce(...args) {
    if (typeof args[0] === 'function')
        return it => reduce(it, args[0], args[1]);
    const it = (0, toIterator_1.default)(args[0]);
    let next;
    const reducer = args[1];
    if (args[2] === undefined) {
        const first = it.next();
        if (first.done)
            throw new TypeError(emptyIteratorError_1.REDUCE_EMPTY_ERROR);
        let accumulator = first.value;
        while (!(next = it.next()).done)
            accumulator = reducer(accumulator, next.value);
        return accumulator;
    }
    let accumulator = args[2];
    while (!(next = it.next()).done)
        accumulator = reducer(accumulator, next.value);
    return accumulator;
}
exports.default = reduce;
//# sourceMappingURL=reduce.js.map