//makeProfileTimer
function makeProfileTimer (a){
    let startTime, endTime;
    startTime = performance.now();
    a
    endTime = performance.now();
    let time = (endTime - startTime)
    alert(`${time}`);
}
//makeSaver
function makeServer(ser){
    let rRun
    let save
    return function sever(){
        if(!rRun){
            save = ser;
            rRun=true;
        }
        return save
    }
}
let saifer = makeServer(Math.random())
value1 = saifer();
console.log("first numb "+value1)
value2 = saifer();
console.log("second numb "+value2)
value1===value2
console.log("result "+ (value1+value2))
//myBind
function myBind(metod,globalObject,tXt){
    function desk(){
        let argum = Object.assign(tXt,arguments);
        return metod.apply(globalObject,argum);
    }
    return desk;
}
let pow5 = myBind(Math.pow, Math, [undefined, 5]);
console.log(pow5(2));
let cube = myBind(Math.pow, Math, [undefined, 3]);
console.log(cube(3));
let zeroPrompt = myBind(prompt, window, [undefined, "0"]);
let someNumber = zeroPrompt("Введите число");
console.log("твой номер ---> "+someNumber);7
//timer ciler
function timeCiller (a){
    for (step = 0; step < 1; step++){ 
        console.log(a)
        let timerId = setInterval(() => console.log(--a), 1000);
        setTimeout(() => { clearInterval(timerId); console.log('run'); }, (a*1000))
    }78
}
timeCiller(prompt("введите число обратного отсчёта","5"))