Counting array values

Suppose I had an array such as:

myArray:Array = ['yes', 'no', 'yes'];

… how could I count the number of times that the values are found, i.e. yes=2, no=1 … in AS3??

_thanks all

thanks Jim - this did it!

run a for loop till the array’s length, have a counter variable that will get incremented each time the value of item of array = “yes”.

Thanks glad i could help.