findNumber.js

function findNumber(number) {
    let max = 1024;
    let min = 0;
    if(number > max || number < min){
        console.log(`Number must be in range ${min} - ${max}`)
        return;
    }
    let guess;
    let step = 0;

    while(max >= min){
        guess = (max + min) /2;
        step++;
        
        if( guess == number){
            console.log(`Your number is ${guess}.\nFound number in ${step} steps`)
            return guess;
        }else if(guess > number){
            console.log(`Your number is below ${guess}`)
            max = guess
        }else{
            console.log(`Your number is above ${guess}`)
            min = guess
        }

    }
}
console.log(findNumber(42));
console.log(findNumber(73));