I have an array with repeating values. I would like to find the number of occurrences for any given value.

For example, if I have an array defined as so: var dataset = [2,2,4,2,6,4,7,8];, I want to find the number of occurrences of a certain value in the array. That is, the program should show that if I have 3 occurrences of the value 2, 1 occurrence of the value 6, and so on.

What's the most idiomatic/elegant way to do this?

javascript arrays
Edit
Report