js find largest number in array code example

Example 1: find biggest number in javascript array

var peopleData = [ 
    { name: "Paul", height: 180, age: 21 },
    { name: "Johnny", height: 198, age: 43 },
    { name: "Brad", height: 172, age: 49 },
    { name: "Dwayne", height: 166, age: 15 }
];

//Find biggest height number
var maxHeight = 0;

for (var i = 0; i < heights.length; i++) {
    if (peopleData[i].height > maxHeight) {
        maxHeight = peopleData[i].height;
      //if you console.log(maxHeight); you should get 198
    }
}

Example 2: greater number in arraya jd

var array = [3 , 6, 2, 56, 32, 5, 89, 32];
var largest= 0;

for (i=0; i<=largest;i++){
    if (array[i]>largest) {
        var largest=array[i];
    }
}




console.log(largest);

Example 3: Find the maximum number of an array js

var arr = [1, 2, 3];
var max = arr.reduce(function(a, b) {
  return Math.max(a, b);
});

Example 4: javascript largest number in array

const max = arr => Math.max(...arr);

Example 5: find smallest number in array js

//Not using Math.min:
const min = function(numbers) {
  let smallestNum = numbers[0];
for(let i = 1; i < numbers.length; i++) {
    if(numbers[i] < smallestNum) {
      smallestNum = numbers[i];   
    }
  }
return smallestNum;
};

Example 6: get largest number in array javascript

const array1 = [1, 3, 2];

Math.max(...array1);
// expected output: 3