JS Practice — Built-in Objects

setFullYear() — chaining with getFullYear()

📖 Usage Example

const d = new Date(2024, 0, 15)
d.setFullYear(2030)
d.getFullYear()  // → 2030

Use setFullYear() to mutate the year of a Date object in place; the month and day remain unchanged.

Date.prototype.setFullYear()

After setting the year, you can immediately read it back with getFullYear().

Challenge: Verify that setting year to 2030 and reading with getFullYear() gives 2030.

💡 Hints (1)