How might I find the largest number contained in a

Question

I have a simple JavaScript Array object containing a few numbers.

[267, 306, 108]

Is there a function that would find the largest number in this array?

Answer 1

Yes of course exist: Math.max.apply(null,[23,45,67,-45]) and the result return 67;

Answer 2

Try this

function largestNum(arr) {
  var currentLongest = arr[0]

  for (var i=0; i< arr.length; i++){
    if (arr[i] > currentLongest){
      currentLongest = arr[i]
    }
  }

  return currentLongest
}

Answer 3

How about this:

var arr = [1,2,3,4];

var largest = arr.reduce(function(x,y){
       return (x > y) ? x : y;
});

console.log(largest);

Answer 4

Using - Array.prototype.reduce() is cool!

[267, 306, 108].reduce((acc,val)=> (acc>val)?acc:val)

where acc = accumulator and val = current value;

var a = [267, 306, 108].reduce((acc,val)=> (acc>val)?acc:val);

console.log(a);