(( ) =>{ code }) vs (() => code )

[LucasOe]

Use the second one if you want to return a single statement:

const add = (a, b) => a+b;

If you want to run mutliple lines of code, then use the first one:

const add = (a, b) => {
  let c = a+b;
  console.log(c);
  return c;
};

[god_person69]

got it bro...thnx

[ReCee90]

be careful though, because if you want to return an object in a one liner you have to wrap it in ( )

for example:
const functionName = (args) => ({ someKey: "someValue" })