JS Practice — Built-in Objects

Array.prototype.shift() — remove and return the first element

📖 Usage Example

const arr = [10, 20, 30]
const first = arr.shift()  // → 10
arr  // → [20, 30]

Use shift() to remove and return the first element of an array.

Array.prototype.shift()

shift() removes the first element from an array, mutates it, and returns the removed element.

const arr = [1, 2, 3]
const first = arr.shift() // first === 1, arr === [2, 3]

💡 Hints (2)