Posted: April 25, 2025 | Last updated: April 25, 2025 Learn JavaScript's Array Reduce method in 100 seconds. Take many things and reduce them down to one thing ...

Javascript reduce method parameters The reduce method accepts two arguments: a reducer function for the array that is used as a callback, and an optional initialValue argument.

Javascript reduce method parameters The reduce method accepts two arguments: a reducer function for the array that is used as a callback, and an optional initialValue argument.