Babeeva Julia-06.05.22-Трикутники

//https://shpp.gitbook.io/zero/tutorials/loops/triangles
let n = +prompt('Введіть розмір сторони трикутника');
//1 triangel
let i = 0;
while (i < n) {
    let star = "";
    i++;
    let j = 0;
    while (j < i) {
        star += "*";
        j++;
    }
    console.log(star);
}
console.log();

//2 triangel
i = 0;
while (i < n) {
    let j = n, star = "";
    while (j > i) {
        star += "*";
        j--;
    }
    i++;
    console.log(star);
}
console.log();

//3 triangel
i = 0;
while (i < n) {
    let space = "";
    let j = 0;
    while (j < i) {
        j++;
        space += " ";
    }

    let star = "";
    j = n;
    while (j > i) {
        j--;
        star += "*";
    }

    console.log(space + star);
    i++;
}
console.log();

//4 triangel
i = 0;
while (i < n) {
    i++;
    let star = "", j = 0;
    while (j < i) {
        j++;
        star += "*";
    }

    let space = "";
    j = n;
    while (j > i) {
        j--;
        space += " ";
    }
    console.log(space + star);
}