Polina-Kobtseva
/
homework


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>HW-6</title>
</head>

<body>
    <script>
        //a

        function a() {
            alert("привет!!!")
        }
        a()

        //cube 

        function cube(a) {
            return a ** 3;
        }
        alert(cube());
        alert(cube(3));

        //avg2

        function avg2(a, b) {
            return (a + b) / 2;
        }
        alert(avg2(1, 2))
        alert(avg2(10, 5))

        //sum3

        function sum3(a, b, c) {
            a = a || 0
            b = b || 0
            c = c || 0
            return (a + b + c)
        }
        alert(sum3(1, 2, 3));
        alert(sum3(5, 10, 100500));
        alert(sum3(5, 10));

        //intRandom

        function intRandom(a, b) {
            a = a || 0
            b = b || 0
            return Math.round(Math.random() * (b - a) + a);
        }
        alert(intRandom(2, 15));
        alert(intRandom(-1, -1));
        alert(intRandom(0, 1));
        alert(intRandom(10));

        //greetAll

        function greetAll(...params) {
            let add = "";
            for (i = 0; i < params.length; i++) {
                add += params[i] + " "
            }
            return alert("Hello " + add)
        }
        greetAll("Superman")
        greetAll("Superman", "SpiderMan")
        greetAll("Superman", "SpiderMan", "Captain Obvious")

        //sum

        function sum(...numbers) {
            var sum = 0;
            for (i = 0; i < numbers.length; i++) {
                sum += numbers[i];
            }
            return sum;
        }
        alert(sum(1))
        alert(sum(2))
        alert(sum(10, 20, 40, 100))

        //Union

        var sample = prompt("Введите название задания")
        switch (sample.toLowerCase()) {
            case "a":
                a()
                break
            case "cube":
                cube()
                break
            case "avg2":
                avg2()
                break;
            case "sum3":
                sum3()
                break;
            case "intRandom":
                intRandom()
                break;
            case "greetAll":
                greetAll()
                break
            case "sum":
                sum()
                break;
        }

        //Union declarative
       
        let sample2 = {
            a(){
                a("Привет")
            },
            cube() {
                cube(3)
            },
            avg2() {
                avg2(1 ,2)
            },
            sum3() {
                sum3(5, 10, 100500)
            },
            intRandom() {
                intRandom(-1, -1)
            },
            greetAll() {
                greetAll("Superman", "SpiderMan")
            },
            sum() {
                sum(10, 20, 40, 100)
            },
        }
        console.log(sample2[prompt("Введите название задания")]());
        
        
    </script>
</body>

</html>