Implicit object return in arrow functions
If your arrow function immediately returns an object and does nothing else, you can wrap that object in parentheses instead of writing return.
// we can be explicit and write `return` before the object we want to return
const myFunction = value => {
return {
key: value,
length: value.length
}
}
// wrapping the object in parentheses also returns it
const myFunction = value => ({
key: value,
length: value.length
})
// if anything else happens in the function, like assigning variables or
// calling other functions, we HAVE to be explicit and write `return`
const myFunction = value => {
const length = value.length
return {
key: value,
length: length
}
}