Parameters and Return

Pass several arguments and use the returned value.

params_return.js

function rectangle(width, height) {
  return width * height;
}

const w = ;
const h = 3;
const area = rectangle(w, h);

console.log("area=" + area);
console.log("doubled=" + (area * 2));

function rectangle(width, height) {
  return width * height;
}

const w = ;
const h = 3;
const area = rectangle(w, h);

console.log("area=" + area);
console.log("doubled=" + (area * 2));

function rectangle(width, height) {
  return width * height;
}

const w = ;
const h = 3;
const area = rectangle(w, h);

console.log("area=" + area);
console.log("doubled=" + (area * 2));

params-return A function can take several parameters and return one value. The returned value is just a number here, so it can feed into more expressions.