how to make a calculator websiteJS
let add =(...params) => {
let sum = 0;
params.forEach(el =>{
sum = sum + parseInt(el);
})
return sum
}
document.querySelector('.add').addEventListener('click' , function (e) {
const adder = document.querySelector('.addinput').value
const meow = adder.split(',')
let result = add(...meow)
if (isNaN(result)) {
result = 'ENTER A NUMBER'
}
document.querySelector('.result').textContent = result
})
let times =(...params) => {
let multiply = 1;
params.forEach(el =>{
multiply = multiply * el;
})
return multiply
}
document.querySelector('.multiply').addEventListener('click' , function (e) {
const multiplier = document.querySelector('.multiplyinput').value
const moo = multiplier.split(',')
let product = times(...moo)
if (isNaN(product)) {
product = 'ENTER A NUMBER'
}
document.querySelector('.product').textContent = product
})
let subtract =(...params) => {
let diff = 0;
diff = params[0] - params[1]
return diff
}
document.querySelector('.subtract').addEventListener('click' , function (e) {
const subtracter = document.querySelector('.subtractinput').value
const woof = subtracter.split(',')
let diff = subtract(...woof)
if (isNaN(diff)) {
diff = 'ENTER A NUMBER'
}
document.querySelector('.difference').textContent = diff
})
let divide =(...params) => {
let quotient = 0;
quotient = params[0] / params[1]
return quotient
}
document.querySelector('.divide').addEventListener('click' , function (e) {
const divider = document.querySelector('.divideinput').value
const moo2 = divider.split(',')
let quotient = divide(...moo2)
if (isNaN(quotient)) {
quotient = 'ENTER A NUMBER'
}
document.querySelector('.quotient').textContent = quotient
})