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// hypothetical undefined value
const name = undefined

// Way 1:
const firstName1 = name || 'Marcelo'
console.log(firstName1)

// Way 2:
const firstName2 = name ? name : 'Marcelo'
console.log(firstName2)

// Way 2 is equal to do:
let firstName3
if (name) {
  firstName3 = name
} else {
  firstName3 = 'Marcelo'
}
console.log(firstName3)