Finding the max value of an attribute in an array of objects

Question

I\'m looking for a really quick, clean and efficient way to get the max \"y\" value in the following JSON slice:

[
  {
    \"x\": \"8/11/2009\",
    \"y\": 0         


        

Answer 1

To find the maximum y value of the objects in array:

Math.max.apply(Math, array.map(function(o) { return o.y; }))