destructuring-tutorial-snippet-17.js

const rainbow = ['red', 'orange', 'yellow', 'green', 'blue', 'indigo', 'violet'];
const rainbowClone = rainbow;

// Both rainbow and rainbowClone point to the same
// array reference in memory, hence it logs (true)
console.log(rainbow === rainbowClone); // true

// Keep only the first 3 items and discard the rest
rainbowClone.splice(3);

// The change on rainbowClone also affected rainbow
console.log(rainbow); // ['red', 'orange', 'yellow']
console.log(rainbowClone); // ['red', 'orange', 'yellow']