VadymShakhmatenko
/
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>Document</title>
</head>
<body>
    <script>
        //a
        function a(){
            alert("Привет");
        }

        //cube 
        var cube = a => a ** 3

        //avg2
        var avg2 = (a , b) => (a + b)/2;


        //sum3
        function sum3(a = 0, b = 0, c = 0) {
                let sums = a + b + c;
                return sums;
        }
        
       //intRandom
       function intRandom(a = 0, b = 0) {
                let random = Math.random() * (b - a) + a;
                return Math.floor(random);
            }

        //greetAll
        function greetAll(){
            for (var i = 0;i < arguments.length;i++){
               arr = alert('Hi ,' + arguments[i])
            }
        }
    //    
        //sum
        function sum(array){
            var a = 0;
            for (let i = 0; i < arguments.length;i++){
               a += arguments[i]
            }
            return a;
        }

        //UNION
        function aSample(){
            console.log(a())
        }
        function cubeSample(){
            console.log(cube(5))
        }
        function avg2Sample(){
            console.log(avg2(20,50))
        }
        function sum3Sample(){
            console.log(sum3(5,10))
        }
        function intRandomSample(){
            console.log(intRandom(2,15))
        }
        function greetAllSample(){
            console.log(greetAll("Spiderman","Superman"))
        }
        function sumSample(){
            console.log(sum(20,40,60,80,100))
        }

        // var sample = prompt("Введите название задания")
        // switch (sample.toLowerCase()){
        //     case "a": aSample()
        //             break
        //     case "cube": cubeSample();
        //             break
        //     case "avg2": avg2Sample();
        //             break
        //     case "sum3": sum3Sample();
        //             break
        //     case "intrandom": intRandomSample();
        //             break
        //     case "greetall": greetAllSample("Superman","SpiderMan")
        //             break
        //     case "sum":sumSample();
        //             break
        // }

        //UNION declarative
        let union = {
                a(){
                    console.log(a())
                },
                cube(){
                    console.log(cube(5))
                },
                avg2(){
                    console.log(avg2(20,50))
                },
                sum3(){
                    console.log(sum3(5,10))
                },
                intRandom(){
                    console.log(intRandom(2,15))
                },
                greetAll(){
                    console.log(greetAll("Spiderman","Superman"))
                },
                sum(){
                    console.log(sum(20,40,60,80,100))
                },
            };
            console.log(union[prompt("Введите название задания")]());
    </script>
    
</body>
</html>