Roll Your own One-Line Math.average Function Using Array.reduce

#javascript #webdev #tutorial #beginners

Just a quick example of using array.reduce to roll your own one-liner average calculation!

const average = (...nums) => 
  nums.reduce((a, b) => a + b, 0) / nums.length;

console.log(average(1, 2, 3, 4));
// 2.5

Cheers!

Top comments (4)

This might be irrelevant to the topic. but how you made that cover photo with colorful tab design?

The theme is Dracula!

thanks

Might be a stupid question, but if I don't want to put it as average calculation, it's still working right for any calculation?