Get Max Key in Key-Value Pair in javascript

Nice example from MDN:

var dict_Numbers = {"96": "0",
                    "97": "1",
                    "98": "2",
                    "99": "3",
                    "100": "4",
                    "101": "5"}
                    
                    
function getMax(obj) {
  return Math.max.apply(null,Object.keys(obj));
}
console.log(getMax(dict_Numbers));

Applying to the keys the easily found Getting key with the highest value from object paying attention to the strings

const dict_Numbers = {
    "96": "0",
    "97": "1",
    "08": "8", // just to make sure
    "09": "9", // just to make sure
    "98": "2",
    "99": "3",
    "100": "4",
    "101": "5"
  },
  max = Object.keys(dict_Numbers)
  .reduce((a, b) => +a > +b ? +a : +b)
console.log(max)

But as I commented on the question, there is a neater way using Math.max on the Object.keys

Now even more elegant using spread

const dict_Numbers = {
    "96": "0",
    "97": "1",
    "08": "8", // just to make sure
    "09": "9", // just to make sure
    "98": "2",
    "99": "3",
    "100": "4",
    "101": "5"
  },
  max = Math.max(...Object.keys(dict_Numbers))
console.log(max)

Tags:

Javascript

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