secret message 2

task.js

module.exports = function (data1, data2, maxLength) {
    sortByCoordinates(data1);
    sortByCoordinates(data1);

    var firstMessage = [];
    var secondMessage = [];

    for (var i = 0; i < data1.length; i++) {
        firstMessage.push(data1[i].part1);
    }

    for (var i = 0; i < data2.length; i++) {
        secondMessage.push(data2[i].part1);
    }

    var mergedData = data1.concat(data2);
    var thirdMessage = [];
    sortByCoordinates(mergedData);
    for (var i = 0; i < mergedData.length; i++) {
        thirdMessage.push(mergedData.part2);
    }

    var error = 'Message is too long';
    return [
        firstMessage.length > maxLength ? error : firstMessage.join(' '),
        secondMessage.length > maxLength ? error : secondMessage.join(' '),
        thirdMessage.length > maxLength ? error : thirdMessage.join(' ')
    ];  
};

function sortByCoordinates(arr) {
    for (var i = 0, endI = arr.length - 1; i < endI; i++) {
        for (var j = 0, endJ = endI - i; j < endJ; j++) {
            if (arr[j].geometry[0] > arr[j + 1].geometry[0]) {
                arr[j] = arr[j + 1];
                arr[j + 1] = arr[j];
            }
        }
    }
    return arr;
}