Homework.5/file.js

// a

function a(){
    alert("Hello")
}
a();

// cube

function cube(x){
    return x**3;
    }
    
cube();

// avg2

function avg2(a,b){
    return (a + b)/2
}

avg2();

// sum3

function sum3(a,b,c){
    return (a + b + c) || (a + b) 
}
sum3();

// intRandom

function intRandom(a,b) {
    if(b === undefined){
     c = (Math.round(Math.random() *a))
    }else 
    c = (Math.round(Math.random() * (b - a) + a));
 return c
    }
intRandom()

// greetAll ???
let guys = "";
function greetAll(){
    for(i = 0;i<arguments.length;i++){
        guys+= " " + arguments[i]};
        alert(`Hi, ${guys}`)

}
greetAll()

// sum

function sum(){
    let result = 0;
       for(i = 0;i<arguments.length;i++){
     result += arguments[i]};
   return result
   }
   sum()

//    Union

// function aSample(){
//     a()
// };

// function cubeSample(){
//     cube()
// };

// function avg2Sample(){
//     avg2()
// };

// function sum3Sample(){
//     sum3()
// };

// function randomSample(){
//     intRandom()
// };

// function greetSample(){
//     greetAll()
// };

// function sumSample(){
//     sum()
// };

let sample = prompt('Введите задание');
switch(sample.toLowerCase()){
    case "a": a()
         break
    case "cube": cube(2)
         break
    case "avg2": avg2(3,4)
         break
    case "sum3": sum3(5,6,7)
         break
    case "intRandom": intRandom(8,12)
         break
    case "greetAll": greetAll("Oleg","Ivan")
         break
    case "sum": sum(9,10,11,13,14)
         break
}


// Union declarative


let samplee = {
    "a": a(),
    "cube": cube(2),
    "avg2": avg2(3,4),
    "sum3": sum3(5,6,7),
    "intRandom": intRandom(8,12),
    "greetAll": greetAll('Oleg','Ivan'),
    "sum": sum(9,10,11,12,13)
}