function toDecimal(num){
    let binary= '';
    if (typeof num==='string'){
        binary = num.split;
    } else {
        binary = num.toString().split();
    }
    let decimal = 0;
    for (let i=0; i < binary.length; i++){
        decimal = (decimal*2)+ binary[i];
    }
    return decimal;
}
    console.log(toDecimal(11110000));