Faça uma função que faça aritmética!
/*
Given two numbers and an arithmetic operator (the name of it, as a string),
return the result of the two numbers having that operator used on them.
a and b will both be positive integers, and a will always be the first number
in the operation, and b always the second.
The four operators are "add", "subtract", "divide", "multiply".
A few examples:(Input1, Input2, Input3 --> Output)
5, 2, "add" --> 7
5, 2, "subtract" --> 3
5, 2, "multiply" --> 10
5, 2, "divide" --> 2.5
*/
const arithmetic = (a, b, operator) => {
let resultNum = 0
switch (operator) {
case "add":
resultNum = a + b;
break;
case "subtract":
resultNum = a - b;
break;
case "multiply":
resultNum = a * b;
break;
case "divide":
resultNum = a / b;
break;
default:
resultNum = 0;
}
return resultNum
}
// With love @kouqhar
kouqhar