JS - Function

let emoji = prompt('input emoji');
let row = prompt('input row');
const pyramid = (emoji,row)=> {
    for(let i = 1; i<=row; i++){
        for(let j=1;j<i;j++){
            document.write(emoji);
        }
       document.write('<br>')
    }
}

pyramid(emoji,row);

let num1 = Number(prompt("input number1"));
let num2 = Number(prompt("input number2"));
function addnumber(funcnum1, num2){
    return funcnum1+num2;
}
const addNumber2 = function(num1,num2){
    return num1+num2;
}
const addNumber3 = (num1,num2) => num1+num2
console.log('함수 선언문',addnumber(num1,num2));
console.log('함수 표현식',addNumber2(num1,num2));
console.log('함수 화살표',addNumber3(num1,num2));