//html tree

/*let body = {
    tagName:'body',
    paired: true,
    attrs:{},
    subTags: [
        {
            tagName:'div',
            paired:true,
            subTags: [
                {
                    tagName:'span',
                    paired:true,
                    text:'Enter a data please',
                },
                {
                    tagName:'br',
                    paired:true,
                    attrs:{},
                },
                {
                    tagName:'input',
                    paired:true,
                    attrs:{
                        type:'text',
                        id:'name',
                    },
                },
                {
                    tagName:'input',
                    paired:true,
                    attrs:{
                        type:'text',
                        id:'surname', //body.subTags[0].subTags[3].attrs.id
                    },
                }
            ]
        },
        {
            tagName:'div',
            paired:true,
            subTags:[
                {
                    tagName:'button',
                    paired:true,
                    attrs:{
                        id:'ok',
                        text:'ok',
                    },
                    tagName:'button', //body.subTags[1].subTags[0].attrs.text
                    paired:true,
                    attrs:{
                        id:'cancel',
                        text:'Cancel',
                    },
                }
            ]
        }
    ]
}*/

//declarative fields
/*let notebook = {
    brand: prompt('Введите название'),
    type:  prompt('Введите id'),
    model: prompt('Введите модель'),
    ram: prompt('Введите кол-во ram'),
    size: confirm('Вас устроит size-14?') || prompt('Введите данные size'),
    weight: confirm('Вас устриоть weight 16?') || prompt('Введите данные weight'),
    resolution: {
        width: 1920,
        height: 1080,
    },
};
console.log(notebook)
let phone = {
    brand: "meizu",
    model: "m2",
    ram: 2,
    color: "black",
};

let person = {
    name: "Donald",
    surname: "Trump",
    married: true,
}*/

//object links
/*var notebook = {
    brand: "HP",
    type:  "440 G4",
    model: "Y7Z75EA",
    ram: 4,
    size: "14",
    weight: 1.8,
    resolution: {
        width: 1920,
        height: 1080,
    },
};

var phone = {
    brand: "meizu",
    model: "m2",
    ram: 2,
    color: "black",
};

var person = {
    name: "Donald",
    surname: "Trump",
    married: true,
}
person.smartphone=phone;
person.laptop=notebook;
phone.owner=person;
notebook.owner=person;
console.log(person.smartphone.owner.laptop.owner.smartphone == person.smartphone)*/

//imperative array fill 3
/*var arr = [];
arr[0] = prompt('Введите элемент')
arr[1] = prompt('Введите элемент')
arr[2] = prompt('Введите элемент')
*/

//while confirm

/*let con = true;
do{
    con = confirm()
}while(!con)*/

//array fill
/*arr = [];
a = prompt('Введит элемент')
while(a){
    arr.push(a)
    a = prompt('Введите элемент')
}*/
//array fill nopush
/*arr = []
a = prompt('Введит элемент')
let b = 0;
while(a){
    arr[b++] = a;
    a = prompt('Введите элемент')
} */

//infinite probability
/*let cons = 0;
while(true){
    if(Math.random() > 0.9){
        alert(cons)
        break;
    }
    else{
        cons++
    }
}*/

//empty loop
/*while(prompt() == null){
}*/

// progression sum

/*let Num;
for(let i = 1;i < 30 ;i = i +3){
    alert(i)
}*/

//chess one line

/*let size = prompt('Введите число')
var Symbol = "";
for (let a = 0; a < size; a++){
    if((a + size)% 2 == 0)
    Symbol +="#"
    else
    Symbol +="#";
}
console.log(Symbol)*/

//numbers
/*let Num = "\n";
for (let i = 0; i < 10; i++) {
    for (let j = 0; j < 10; j++) {
       Num +=j;
    }
    Num +="\n";
}*/

// chess
/*let size = 10;
var Symbol = "";
for (let a = 0; a < size; a++){
    for(let b = 0; b <6; b++){
        if((a + b)% 2 == 0)
        Symbol +=".#."
        else
        Symbol +="#";
    }
    Symbol +="\n";
}
console.log(Symbol)*/

//cubes
/*var numbers = [1, 2, 3, 4, 5];
var cubes = new Array;
for (i in numbers) {
    cubes[i] = Math.pow(numbers[i], 3);
    alert(cubes)
}*/

//multiply table

/*let arr = [];
for(let i = 0; i <= 10; i++ ){
    arr[i] = [];
    for (let j = 0; j <= 10; j++ ){
        arr[i][j] = i * j;
    }
}
let sum = '';
for (let i = 1; i < 10; i++) {
  sum += arr[i].slice(1).join(' ') + '\n';
}
console.log(arr);*/

//matrix to html table
/*var table, row, cell, i, j;
		var table, row, cell, i, j;
        table = document.createElement('table');
	    table.style.textAlign = 'right';

        table.style.fontFamily = 'monospace';

        for (i=1; i<10; i++) {

            row = document.createElement('tr');

            for (j=1; j<10; j++) {

                cell = document.createElement(i == 1 || j == 1 ? 'th' : 'td');

                cell.appendChild(document.createTextNode(i*j));

                cell.style.padding = '4px';

                cell.style.width = 100 / 9 + '%';
				row.appendChild(cell);
            }
            table.appendChild(row);
        }
        document.body.appendChild(table);*/