Just following mdn tutorial on reduce on javascript, Can someone please explain to me why below I cannot use the curly brackets around the callback?
const array1 = [1, 2, 3, 4];
// 0 + 1 + 2 + 3 + 4
const initialValue = 0;
// expected output: 10
const sumWithInitialTest = array1.reduce( (pv, cv) =>
{ pv + cv }
)
console.log(sumWithInitialTest)Obviously, without curly bracket, it works fine
const array1 = [1, 2, 3, 4];
// 0 + 1 + 2 + 3 + 4
const initialValue = 0;
// expected output: 10
const sumWithInitialTest = array1.reduce( (pv, cv) =>
pv + cv
)
console.log(sumWithInitialTest)Add return if you want to use curly bracket
const array1 = [1, 2, 3, 4];
// 0 + 1 + 2 + 3 + 4
const initialValue = 0;
// expected output: 10
const sumWithInitialTest = array1.reduce( (pv, cv) =>
{ return pv + cv }
)
console.log(sumWithInitialTest)