Rio Rio - 3 months ago 10
Javascript Question

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

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":0.026572007},{"x":"8/12/2009","y":0.025057454},{"x":"8/13/2009","y":0.024530916},{"x":"8/14/2009","y":0.031004457}]


Is a for-loop the only way to go about it? I'm keen on somehow using
Math.max
.

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