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

Run this:

Array.prototype.max = function(){
    return Math.max.apply( Math, this );
};

And now try [3,10,2].max() returns 10

Answer 2

I just started with JS but I think this method would be good:

var array = [34, 23, 57, 983, 198];<br>
var score = 0;

for(var i = 0; i = array.length; i++) {
  if(array[ i ] > score) {
    score = array[i];
  }
}

Answer 3

how about using Array.reduce ?

[0,1,2,3,4].reduce(function(previousValue, currentValue){
  return Math.max(previousValue,currentValue);
});

Answer 4

The easiest syntax, with the new spread operator:

var arr = [1, 2, 3];
var max = Math.max(...arr);

Source : Mozilla MDN

Answer 5

You could sort the array in descending order and get the first item:

[267, 306, 108].sort(function(a,b){return b-a;})[0]

Answer 6

You can also use forEach:

var maximum = Number.MIN_SAFE_INTEGER;

var array = [-3, -2, 217, 9, -8, 46];
array.forEach(function(value){
  if(value > maximum) {
    maximum = value;
  }
});

console.log(maximum); // 217