How to write a function which can accept one or more arguments and send back addition

Question

I have to call function in below way

sum(3)(2)

My function is:

sum(a,b) { return a + b }

Does this answer your question? [javascript currying](https://stackoverflow.com/questions/5273420/javascript-currying) — sylvanaar, May 14 '20 at 05:44

Soham · Accepted Answer · 2020-05-21T05:19:29.667

4

Take a look at Currying concept

let sum = (a) => (b) => a + b

console.log(sum(1)(3)) // 4

edited May 21 '20 at 05:19

answered May 14 '20 at 05:37

Soham

kokila · Answer 2 · 2020-05-14T05:41:26.963

0

you can try out this approach

function sum(x, y) {
 if (y !== undefined) {
  return x + y;
 } else {
  return function(y) { return x + y; };
 }
}

edited May 14 '20 at 05:41

answered May 14 '20 at 05:39

kokila

2 Answers2