devextreme/dist/transpiled/core/utils/iterator.js

HTML5 JavaScript Component Suite for Responsive Web Development

"use strict";

var applyCallback = function applyCallback(index, values, callback, result) {
    var value = callback(values[index], index);

    if (value != null) {
        result.push(value);
    }
};

var map = function map(values, callback) {
    var result = [];

    if ("length" in values) {
        for (var index = 0; index < values.length; index++) {
            applyCallback(index, values, callback, result);
        }
    } else {
        for (var key in values) {
            applyCallback(key, values, callback, result);
        }
    }

    return [].concat.apply([], result);
};

var each = function each(values, callback) {
    if (!values) return;

    if ("length" in values) {
        for (var i = 0; i < values.length; i++) {
            if (callback.call(values[i], i, values[i]) === false) {
                break;
            }
        }
    } else {
        for (var key in values) {
            if (callback.call(values[key], key, values[key]) === false) {
                break;
            }
        }
    }

    return values;
};

exports.map = map;
exports.each = each;