glance-selector/lib/utils/array-utils.js

Glance selector library

"use strict";

Object.defineProperty(exports, "__esModule", {
    value: true
});
exports.reduce = reduce;
exports.unique = unique;
function reduce(collection, memo, iteratee, resultHandler) {
    function process(i, collection, memo, iteratee, handler) {
        if (i < collection.length) {
            return iteratee(memo, collection[i], function (err, result) {
                if (err) {
                    return handler(err, memo);
                }

                return process(++i, collection, result, iteratee, handler);
            });
        }

        return handler(null, memo);
    }

    return process(0, collection, memo, iteratee, resultHandler);
}

function unique(array, resultHandler) {
    return browserExecute(function (array, handler) {
        try {
            return handler(null, array.filter(function (x, i) {
                return array.indexOf(x) === i;
            }));
        } catch (err) {
            return handler(err, []);
        }
    }, array, resultHandler);
}