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+"use strict";
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+
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+//*TODO: html tree
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+// let 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: "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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+// 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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+// console.log(body.subTags[1].subTags[1].text);
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+// console.log(body.subTags[0].subTags[2].attrs.id);
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+
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+
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+//*TODO: declarative fields
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+// let notebook = {
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+// brand: prompt("Enter a brand your notebook","HP"),
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+// type: prompt("Enter a type your notebook","440 G4"),
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+// model: prompt("Enter a model your notebook","Y7Z75EA"),
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+// ram: +prompt("Enter a ram your notebook","4"),
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+// size: prompt("Enter a size your notebook","14"),
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+// weight: +prompt("Enter a weight your notebook","1.8,"),
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+// resolution: {
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+// width: +prompt("Enter a screen width in px","1920"),
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+// height: +prompt("Enter a screen height in px","1080"),
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+// },
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+// owner: prompt("Enter the owner of the notebook","Alex"),
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+// };
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+
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+// let phone = {
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+// brand: prompt("Enter a brand your phone","meizu"),
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+// model: prompt("Enter a model your phone","m2"),
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+// ram: +prompt("Enter a ram your phone","2"),
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+// color: prompt("Enter a color your phone","black"),
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+// owner: prompt("Enter the owner of the phone","Kate"),
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+// };
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+
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+// let person = {
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+// name: prompt("Enter a your name","Donald"),
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+// surname: prompt("Enter a your surname","Trump"),
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+// married: confirm("Are you married?"),
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+// smartphone: confirm("Do you have a smartphone?"),
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+// laptop: confirm("Do you have a laptop?"),
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+// }
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+
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+
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+//*TODO: object links
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+// person.smartphone = notebook;
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+// notebook.owner = person;
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+// person.laptop = phone;
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+// phone.owner = person;
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+
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+// console.log(person.smartphone.owner.laptop.owner.smartphone == person.smartphone)
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+
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+
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+//*TODO: imperative array fill 3
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+// let arr = [];
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+
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+// for (let i = 0; i < 3; i++) {
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+// let userAnswer = prompt("Напиши 3 своих любимых сериала", "");
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+// arr.push(userAnswer);
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+// }
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+// console.log(arr);
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+
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+
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+//*TODO: while confirm
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+// while(confirm("Hi") == false) {
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+
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+// if (confirm("Hi") !== false) {
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+// break;
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+// }
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+// }
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+
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+
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+//*TODO: array fill
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+// let arr = [];
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+
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+// while(true) {
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+// let userAnswer = prompt("Перечисли свои любимые фильмы", "");
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+
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+// if(isNaN(userAnswer)) {
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+// arr.push(userAnswer);
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+// };
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+
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+// if (userAnswer == null) {
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+// break;
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+// }
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+// }
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+// console.log(arr);
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+
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+
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+//*TODO: array fill nopush
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+// let arr = [];
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+// let i = 0;
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+
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+// while(true) {
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+// let userAnswer = prompt("Перечисли свои любимые фильмы", "");
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+
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+// if(isNaN(userAnswer)) {
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+// arr[i] = userAnswer;
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+// }
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+
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+// if (userAnswer == null) {
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+// break;
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+// }
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+// i++;
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+// }
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+// console.log(arr);
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+
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+
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+//*TODO: infinite probability
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+// let i = 0;
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+// let randomNumber = 0;
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+// while(true) {
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+// randomNumber = Math.random(i);
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+
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+// if (randomNumber > 0.9) {
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+// break;
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+// }
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+// i++;
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+// console.log(randomNumber);
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+// }
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+
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+// alert(i);
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+
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+
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+//*TODO: empty loop
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+// while(prompt() === null) {
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+// }
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+
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+
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+//*TODO: progression sum
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+// let userNumber = prompt("Введите число", "");
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+// let progressionSum = 0;
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+// for (let i = 0; i < userNumber; i++) {
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+// console.log(i);
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+// progressionSum = progressionSum + (1 + (i * 3));
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+// }
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+
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+// console.log(progressionSum);
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+
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+
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+//*TODO: chess one line
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+// let str = "";
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+// for (let i = 0; i < 5; i++) {
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+// str += "# ";
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+// }
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+// console.log(str);
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+
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+
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+//*TODO: numbers
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+// let str = "";
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+
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+// for (let a = 0; a < 10; a++) {
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+// for (let i = 0; i < 10; i++) {
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+// str += i;
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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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+
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+//*TODO: chess
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+// let str = "";
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+
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+// for (let i = 0; i < 10; i++) {
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+// for (let x = 0; x < 10; x++) {
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+// if ((x + i) % 2 == 0)
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+// str += ". ";
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+// else
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+// str += "# ";
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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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+
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+//*TODO: cubes
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+// let arr = [0, 1, 2, 5, 10];
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+
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+// let num = 0;
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+// let arrMode = [];
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+// for (let key of arr) {
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+// let cube = num * num * num;
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+// arrMode.push(cube);
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+// num++;
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+// }
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+
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+// console.log(arrMode)
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+
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+
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+//*TODO: multiply table
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+// let arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
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+// let arrMode = [];
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+
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+// for (let keyN of arr) {
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+// arrMode[keyN] = [];
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+// for (let keyM of arr) {
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+// arrMode[keyN][keyM] = (keyN * keyM);
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+// }
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+// }
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+
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+// console.log(arrMode[7][2])
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+
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+
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+//*TODO: matrix to html table
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+// let tab = document.getElementById("table");
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+
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+// let arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
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+// let arrMode = [];
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+// let html = "<table>";
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+// for (let keyN of arr) {
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+// arrMode[keyN] = [];
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+// for (let keyM of arr) {
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+// arrMode[keyN][keyM] = (keyN * keyM);
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+// html +=
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+// `<tr>
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+// <td>${keyN}</td>
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+// <td>${keyM}</td>
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+// <td>${keyN * keyM}</td>
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+// </tr>`
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+// }
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+// }
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+
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+// html += "</table>";
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+// tab.innerHTML = html;
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+
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+
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+//*TODO: Задание на синий пояс: Треугольник
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+// let i = 0,
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+// j = 0;
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+
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+// let dot = "",
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+// grid = "";
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+
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+// while (i < 5) {
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+// dot = "";
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+// grid = "";
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+// for (j = 1; j < 5 - i; j++) {
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+// dot += ". ";
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+// }
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+
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+// for (j = 0; j < 2 * i + 1; j++) {
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+// grid += "# ";
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+// }
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+// console.log(dot + grid + dot);
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+// i++;
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+// }
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+
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+
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+//*TODO: Задание на черный пояс: Электронная гадалка
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+// let userNumber;
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+// let prediction = [];
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+// let historySize = 4;
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+
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+// for (let i = 1; i <= 5; i++) {
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+// if (prediction.length < historySize) {
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+// console.log("prediction = RANDOM " + Math.round(Math.random()));
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+// userNumber = +prompt("Введите число", "");
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+// prediction.push(userNumber);
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+// } else {
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+// console.log("prediction = HISTORY " + prediction[0]);
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+// userNumber = +prompt("Введите число", "");
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+// prediction.push(userNumber);
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+// prediction.shift();
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+// }
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+// }
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+
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