Задание 2 JSON to table

ko_index.js

var jsn = require('./json.json');

function Table(jsn){

    this.colWidths = function(jsn){
            return jsn.map(function(arr, i) {

                var mass = [];
                return arr.reduce(function(max, row, item, ar) {
                        row = row.toString().length;

                        mass[item] = row;

                        return mass;
            }, 0);
        });
    };

    this.colHeight = function(jsn){
        return jsn.length
    };

    this.cellWidth = function(jsn){

        var colWidths = this.colWidths(jsn);
        var maxCell   = this.maxCell(jsn);
        var colHeight = this.colHeight(jsn);
        var arrayMaxCellLength = [];
        var arrayCol = [];



        for ( var i  = 0 ; i < maxCell; i++){

            arrayCol[i] = [];

            for ( var j  = 0 ; j < colHeight; j++){

                var val = colWidths[j][i];
                if(val === undefined) {
                    val = 0
                }
                arrayCol[i].push(val);
            }
            arrayMaxCellLength.push( Math.max.apply(null, arrayCol[i]));
        }


        return arrayMaxCellLength;
    };

    this.maxCell = function(jsn){

        return jsn.reduce(function(prev, next, item, ar){

            if(prev > next.length){
                return prev
            }else{
                return next.length
            }

        }, 0)

    };

    this.separatorAmount = function(){
        var separatorAmount = this.maxCell(jsn) - 1;
        return separatorAmount
    }

    this.rowWidth  = function(jsn){
        var rowWidth = this.cellWidth(jsn).reduce(function(max, prev, item, ar){
            return max + prev
        }, 0);

        return this.separatorAmount() + rowWidth
    };

};


function Create(jsn){

    this.sizeData = new Table(jsn)
    this.go = [];

    this.arrBorder = function(){
        var arrBorder = [];
        var rowWidth = this.sizeData.rowWidth(jsn);
        for(i = 0; i < rowWidth; i++){
            arrBorder.push('-')
        }

        arrBorder.unshift('+');
        arrBorder.push('+');
        arrBorder.push('\r\n');

        return arrBorder.join('');
    };

    this.arrHeader = function(){
        var arrHeader = [];
        var cellWidth = this.sizeData.cellWidth(jsn);

        arrHeader.unshift('|');

        jsn[0].forEach(function(value, item, arr) {


            while( value.length < cellWidth[item] ){
                value = value + ' '
            }

            arrHeader.push(value);
            arrHeader.push('|')

        });


               arrHeader.push('\r\n');
        return arrHeader.join('');

    };

    this.arrBody   = function(){
        var arrBody = [[]];
        var cellWidth = this.sizeData.cellWidth(jsn);
        var colHeight = this.sizeData.colHeight(jsn);


        for(var i = 1; i < colHeight; i++){

            itemArr = [];

            jsn[i].forEach(function(value, item, arr) {

                while(value.length != cellWidth[item]){
                    value = value + ' ';
                }

                itemArr.push(value);
                itemArr.push('|')
            });
            itemArr.unshift('|');
            itemArr.push('\r\n');

            arrBody.push(itemArr.join(''));
        }
        return arrBody.join('');

    };

    this.create = function(){

        this.go.push(this.arrBorder());
        this.go.push(this.arrHeader());
        this.go.push(this.arrBorder());
        this.go.push(this.arrBody());
        this.go.push(this.arrBorder());

        console.log(this.go.join(''))
    }

}

var createTable = new Create(jsn);

createTable.create();

ko_json.json

[
  ["String", "Number", "Color", "Pring"],
  ["string 1", 1, "red", "12"],
  ["strasdasding 2", 2, "blasdasdue"],
  ["string 2", 2, "blasdasdue"],
  ["string 2", 2, "blasdasdue"],
  ["string 2", 2, "blasdasasdasddue"],
  ["string 2", 2, "blasdasdue"],
  ["string 2", 2, "blasdasdue"],
  ["strasdasdasding 2", 2, "blasdasdue"],
  ["string 2", 2, "blasdasdue"],
  ["string 2", 2, "blasdasdue"],
  ["string 2", 2, "blasdasdue"],
  ["string 2", 2, "blasdasdue"],
  ["string 2", 2, "blasdasdue"],
  ["string 2", 2, "blaasassasdasdue", 2, "blaasassasdasdue"],
  ["string 2", 2, "blasdasdue"],
  ["string 2", 2, "blasdasdue"],
  [],
  ["string 3", 3, "blubloong"]
]