Function mean

Computes the mean of the values in iterable and accepts an optional key function which is invoked for each element to generate the values to be averaged.

Returns

Returns the mean value or NaN if no elements.

Example

let objects = [{ 'n': 4 }, { 'n': 2 }, { 'n': 8 }, { 'n': 6 }]

mean(objects, (o) => o.n)
// 5