JS Practice — Built-in Objects

Date.parse() — returns a number

📖 Usage Example

Date.parse('2024-01-15T00:00:00.000Z')  // → 1705276800000
Date.parse('invalid')  // → NaN

Use Date.parse() to convert a date string into a millisecond timestamp, or detect invalid strings by checking for NaN.

Date.parse()

Date.parse() always returns a primitive number (or NaN, which is also of type 'number').

Challenge: Verify that typeof Date.parse('2024-01-15') returns 'number'.

💡 Hints (1)

• Both valid and invalid parse results are of type "number" (NaN is typeof "number" too)