JSFiddle - React, Tailwind, and code Playground

by Ironim Morar

JavaScript

var array = [{"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}];

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

alert('Max y = ' + res);