zippa/lib/test/utils.js

A Generic Zipper Library

'use strict';

Object.defineProperty(exports, "__esModule", {
    value: true
});
exports.collect = exports.reduce = undefined;

var _index = require('../index');

var reduceVisitor = function reduceVisitor(fn) {
    return function (item, state) {
        return { state: fn(state, item) };
    };
};

var reduce = exports.reduce = function reduce(fn, initialAcc, zipper) {
    return (0, _index.visit)([(0, _index.onPre)(reduceVisitor(fn))], initialAcc, zipper).state;
};

var collect = exports.collect = function collect(fn, zipper) {
    return reduce(function (acc, item) {
        acc.push(fn(item));
        return acc;
    }, [], zipper);
};