homework/HW3/js/script.js

"use strict";

function htmlTree() {
    let body = {
        tagName: 'body',
        subTags: [{
                tagName: 'div',
                subTags: [{
                        tagName: "span",
                        text: "Enter a data please:",
                    },
                    {
                        tagName: "input",
                        attrs: {
                            type: "text",
                            id: "name",
                        },
                    },
                    {
                        tagName: "input",
                        attrs: {
                            type: "text",
                            id: "surname",
                        },
                    },
                ]
            },
            {
                tagName: 'div',
                subTags: [{
                        tagName: "button",
                        text: "OK",
                        attrs: {
                            id: "ok",
                        },
                    },
                    {
                        tagName: "button",
                        text: "Cancel",
                        attrs: {
                            id: "cancel",
                        },
                    },
                ]
            }
        ]
    }

    console.log(body.subTags[1].subTags[1].text);
    console.log(body.subTags[0].subTags[2].attrs.id);
}
// htmlTree()


function declarativeFields() {
    let notebook = {
        brand: prompt("Enter a brand your notebook", "HP"),
        type: prompt("Enter a type your notebook", "440 G4"),
        model: prompt("Enter a model your notebook", "Y7Z75EA"),
        ram: +prompt("Enter a ram your notebook", "4"),
        size: prompt("Enter a size your notebook", "14"),
        weight: +prompt("Enter a weight your notebook", "1.8,"),
        resolution: {
            width: +prompt("Enter a screen width in px", "1920"),
            height: +prompt("Enter a screen height in px", "1080"),
        },
        owner: prompt("Enter the owner of the notebook", "Alex"),
    };

    let phone = {
        brand: prompt("Enter a brand your phone", "meizu"),
        model: prompt("Enter a model your phone", "m2"),
        ram: +prompt("Enter a ram your phone", "2"),
        color: prompt("Enter a color your phone", "black"),
        owner: prompt("Enter the owner of the phone", "Kate"),
    };

    let person = {
        name: prompt("Enter a your name", "Donald"),
        surname: prompt("Enter a your surname", "Trump"),
        married: confirm("Are you married?"),
        smartphone: confirm("Do you have a smartphone?"),
        laptop: confirm("Do you have a laptop?"),
    }

    person.smartphone = notebook;
    notebook.owner = person;
    person.laptop = phone;
    phone.owner = person;

    console.log(person.smartphone.owner.laptop.owner.smartphone == person.smartphone)
}
// declarativeFields()


function imperativeArray() {
    let arr = [];

    for (let i = 0; i < 3; i++) {
        let userAnswer = prompt("Напиши 3 своих любимых сериала", "");
        arr.push(userAnswer);
    }
    console.log(arr);
}
// imperativeArray()


function whileConfirm() {
    while (confirm("Hi") == false) {

        if (confirm("Hi") !== false) {
            break;
        }
    }
}
// whileConfirm()


function arrayFill() {
    let arr = [];

    while (true) {
        let userAnswer = prompt("Перечисли свои любимые фильмы", "");

        if (isNaN(userAnswer)) {
            arr.push(userAnswer);
        };

        if (userAnswer == null) {
            break;
        }
    }
    console.log(arr);
}
// arrayFill()


function arrayFillNopush() {
    let arr = [];
    let i = 0;

    while (true) {
        let userAnswer = prompt("Перечисли свои любимые фильмы", "");

        if (isNaN(userAnswer)) {
            arr[i] = userAnswer;
        }

        if (userAnswer == null) {
            break;
        }
        i++;
    }
    console.log(arr);
}
// arrayFillNopush()


function infiniteProbability() {
    let i = 0;
    let randomNumber = 0;
    while (true) {
        randomNumber = Math.random(i);

        if (randomNumber > 0.9) {
            break;
        }
        i++;
        console.log(randomNumber);
    }

    alert(i);
}
// infiniteProbability()


function emptyLoop() {
    while (prompt() === null) {}
}
// emptyLoop() 


function progressionSum() {
    let userNumber = prompt("Введите число", "");
    let progressionSum = 0;
    for (let i = 0; i < userNumber; i++) {
        progressionSum = progressionSum + (1 + (i * 3));
    }
    console.log(progressionSum);
}
// progressionSum()


function chessOneLine() {
    let str = "";
    for (let i = 0; i < 5; i++) {
        str += "# ";
    }
    console.log(str);
}
// chessOneLine()


function numbers() {
    let str = "";

    for (let a = 0; a < 10; a++) {
        for (let i = 0; i < 10; i++) {
            str += i;
        }
        str += "\n";
    }
    console.log(str);
}
// numbers()


function chess() {
    let str = "";

    for (let i = 0; i < 10; i++) {
        for (let x = 0; x < 10; x++) {
            if ((x + i) % 2 == 0)
                str += ". ";
            else
                str += "# ";
        }
        str += "\n";
    }
    console.log(str);
}
// chess()


function cubes() {
    let arr = [0, 1, 2, 5, 10];

    let num = 0;
    let arrMode = [];
    for (let key of arr) {
        let cube = num * num * num;
        arrMode.push(cube);
        num++;
    }
    console.log(arrMode)
}
// cubes()


function multiplyTable() {
    let arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
    let arrMode = [];

    for (let keyN of arr) {
        arrMode[keyN] = [];
        for (let keyM of arr) {
            arrMode[keyN][keyM] = (keyN * keyM);
        }
    }
    console.log(arrMode[7][2])
}
// multiplyTable()


function matrix() {
    let tab = document.getElementById("table");

    let arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
    let arrMode = [];
    let html = "<table>";
    for (let keyN of arr) {
        arrMode[keyN] = [];
        for (let keyM of arr) {
            arrMode[keyN][keyM] = (keyN * keyM);
            html +=
                `<tr>
            <td>${keyN}</td>
            <td>${keyM}</td>
            <td>${keyN * keyM}</td>
            </tr>`
        }
    }

    html += "</table>";
    tab.innerHTML = html;
}
// matrix()


function triangle() {
    let i = 0,
        j = 0;

    let dot = "",
        grid = "";

    while (i < 5) {
        dot = "";
        grid = "";
        for (j = 1; j < 5 - i; j++) {
            dot += ". ";
        }

        for (j = 0; j < 2 * i + 1; j++) {
            grid += "# ";
        }
        console.log(dot + grid + dot);
        i++;
    }
}
// triangle() 


function electronicFortuneTeller() {
    let userNumber;
    let prediction = [];
    let historySize = 4;

    for (let i = 1; i <= 5; i++) {
        if (prediction.length < historySize) {
            console.log("prediction = RANDOM " + Math.round(Math.random()));
            userNumber = +prompt("Введите число", "");
            prediction.push(userNumber);
        } else {
            console.log("prediction = HISTORY " + prediction[0]);
            userNumber = +prompt("Введите число", "");
            prediction.push(userNumber);
            prediction.shift();
        }
    }
}
// electronicFortuneTeller()