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+function htmlTree() {
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+ // <body>
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+ // <div>
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+ // <span>Enter a data please:</span><br/>
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+ // <input type='text' id='name'>
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+ // <input type='text' id='surname'>
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+ // </div>
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+ // <div>
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+ // <button id='ok'>OK</button>
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+ // <button id='cancel'>Cancel</button>
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+ // </div>
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+ // </body>
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+
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+
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+ var body = {
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+ tagName: 'body',
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+ subTags: [{
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+ tagName: 'div',
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+ subTags: [{
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+ tagName: 'span',
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+ text: "Enter a data please:",
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+ },
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+ {
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+ tagName: 'br',
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+ },
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+ {
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+ tagName: 'input',
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+ attrs: {
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+ type: 'text',
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+ id: 'name'
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+ }
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+ },
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+ {
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+ tagName: 'input',
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+ attrs: {
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+ type: 'text',
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+ id: 'surname'
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+ }
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+ }
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+ ],
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+ },
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+ {
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+ tagName: 'div',
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+ subTags: [{
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+ tagName: 'button',
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+ text: "OK",
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+ attrs: {
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+
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+ id: 'ok'
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+ }
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+ },
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+ {
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+ tagName: 'button',
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+ text: "Cancel",
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+ attrs: {
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+ id: 'cancel'
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+ }
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+
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+ },
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+ ],
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+
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+ },
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+ ],
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+ }
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+ console.log('Значения текста во второй кнопке = ', body.subTags[1].subTags[1].text);
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+ console.log('Значение атрибута id во втором input= ', body.subTags[0].subTags[3].attrs.id);
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+}
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+//htmlTree();
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+
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+function declarativeFields() {
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+
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+ var laptop = {
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+ brand: prompt('Enter a brand laptop'),
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+ type: prompt('Enter a type laptop'),
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+ model: prompt('Enter a model laptop'),
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+ ram: Number(prompt('Enter a ram laptop')),
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+ size: prompt('Enter a size laptop'),
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+ weight: Number(prompt('Enter a weight laptop')).toFixed(2),
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+ resolution: {
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+ width: Number(prompt('Enter a width laptop')),
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+ height: Number(prompt('Enter a height laptop')),
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+ },
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+ owner: person
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+ };
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+
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+ var smartphone = {
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+ brand: prompt('Enter a brand smartphone'),
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+ model: prompt('Enter a model smartphone'),
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+ ram: prompt('Enter a ram smartphone'),
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+ color: prompt('Enter a color smartphone'),
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+ owner: person
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+ };
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+
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+ var person = {
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+ name: prompt('Enter a name'),
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+ surname: prompt('Enter a surname'),
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+ married: Boolean(confirm('Are you married?')),
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+ }
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+
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+
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+ person.smartphone = prompt('Enter the smartphone');
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+ person.laptop = prompt('Enter the laptop');
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+ //console.log(Object.keys(person));
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+ person.smartphone = smartphone;
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+ person.laptop = laptop;
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+ smartphone.owner = person;
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+ laptop.owner = person;
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+ (person.smartphone.owner.laptop.owner.smartphone == person.smartphone) ? alert('yes'): alert('no');
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+}
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+//declarativeFields();
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+function imperativeArray() {
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+ let arr = [];
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+ console.log('before array = ', arr);
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+ for (let i = 0; i < 3; i++) {
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+ arr.push(prompt('Enter the element for array'));
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+ }
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+ console.log('after array = ', arr);
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+}
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+//imperativeArray();
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+function whileConfirm() {
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+ do {
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+ var valueUser = confirm('Это работает пока ты нажимаешь отмена');
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+ }
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+ while (!valueUser) //Пока пользователь нажимает отмена
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+}
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+//whileConfirm();
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+function arrayFill() {
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+ let arr = []
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+
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+ do {
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+ var valueArr = prompt('Enter the element for array');
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+ arr.push(valueArr);
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+ }
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+ while (valueArr)
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+ console.log(arr);
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+}
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+//arrayFill();
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+function arrayFillNoPush() {
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+ let arr = [],
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+ i = 0;
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+ let values;
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+ while (values = prompt('Enter the element for array')) {
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+ arr[i] = values;
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+ i++;
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+
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+ }
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+ console.log(arr);
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+}
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+//arrayFillNoPush();
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+function infiniteProbability() {
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+ var i = 0;
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+ while (true) {
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+ if (Math.random() > 0.9) {
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+ break;
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+ }
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+ i++;
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+ }
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+ alert('i = ' + i);
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+
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+
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+}
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+//infiniteProbability();
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+function emptyLoop() {
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+ do {
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+ var valueUser = prompt('Это работает пока ты нажимаешь отмена');
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+ }
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+ while (valueUser == null) //Пока пользователь нажимает отмена
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+}
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+//emptyLoop();
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+
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+function progressionSum(N) {
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+ let summa = 0;
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+ for (let i = 1; i < N; i += 3) {
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+ summa += i;
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+
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+ }
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+ console.log('summa= ', summa);
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+}
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+//progressionSum(100);
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+
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+function chessOneLine(N) {
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+ let str = "";
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+ for (let i = 0; i < N; i++) {
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+ i % 2 ? str += " " : str += "#";
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+ }
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+ console.log('str= ' + str);
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+}
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+//chessOneLine(10);
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+
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+function numbers() {
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+ let str = "";
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+ for (let i = 0; i < 10; i++) {
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+ for (let j = 0; j < 10; j++) {
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+ str += j;
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+ }
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+ str += '\n';
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+ }
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+ console.log(str);
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+}
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+//numbers();
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+function chess(N) {
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+ let str = "";
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+ for (let i = 0; i < N; i++) {
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+
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+ for (let j = 0; j < N; j++) {
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+ ((i + j) % 2) ? str += ".": str += '#';
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+
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+ }
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+ str += '\n';
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+ }
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+
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+ console.log(str);
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+}
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+//chess(10, 10);
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+
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+function cubes(N) {
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+ var arr = [];
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+ for (let i = 0; i < N; i++) {
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+ arr.push((Math.pow(i, 3)));
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+ }
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+ console.log(arr);
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+}
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+//cubes(10);
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+
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+function multiplyTable() {
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+ let arr = [];
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+ for (let i = 0; i < 10; i++) {
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+ arr[i] = [];
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+ for (let j = 0; j < 10; j++) {
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+ arr[i][j] = i * j;
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+ }
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+ }
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+ console.log('arr[5][6]= ', arr[5][6]);
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+ console.log('arr[7][2]= ', arr[7][2]);
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+}
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+//multiplyTable();
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+
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+function matrixHtmlTable(N) {
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+ let arr = [];
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+ let str = '<table>'
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+ for (let i = 1; i < N; i++) {
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+ arr[i] = [];
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+ str += "<tr>"
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+ for (let j = 1; j < N; j++) {
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+ arr[i][j] = i * j;
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+ str += "<td>";
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+ str += arr[i][j];
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+ str += "</td>"
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+ }
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+ str += "</tr>"
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+ }
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+ str += '</table>'
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+ document.write(str)
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+
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+}
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+//matrixHtmlTable(10);
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+//Задание на синий пояс: Треугольник
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+function triangle(N) {
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+ for (let i = 0; i < N; i++) {
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+ let strPoint = "";
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+ let strTringle = "";
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+ for (let j = 0; j < N - i - 1; j++) strPoint += ".";
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+ for (let j = 0; j < 2 * i + 1; j++) strTringle += "#";
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+ console.log(strPoint + strTringle + strPoint);
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+ }
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+}
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+//triangle(6);
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