Fix JavaScript TypeError: Invalid Date (2025 Guide)
Fix TypeError: Invalid Date in JavaScript - 2025 Guide Fix TypeError: Invalid Date in JavaScript - 2025 Guide Posted on: March 18, 2025 Seeing a "TypeError: Invalid Date" in JavaScript? It means your Date object got an invalid value. Let’s fix it fast in this 2025 guide! What Causes "TypeError: Invalid Date"? This error occurs when a Date object fails to parse a date. Common causes: Wrong Format : Invalid date string format. Invalid Values : Out-of-range numbers for month, day, etc. Bad Input : Passing non-date values like undefined or null. Try this demo (open console with F12): See the Pen Fix JavaScript TypeError: Invalid Date (2025 Guide) by devsky ( @devsky_ ) on CodePen . Here, the date string "not-a-date...