 # JavaScript: Find the maximum difference between any two adjacent elements of a given array of integers

## JavaScript Basic: Exercise-92 with Solution

Write a JavaScript program to find the maximum difference between any two adjacent elements of a given array of integers.

Pictorial Presentation: Sample Solution:

HTML Code:

``````<!DOCTYPE html>
<html>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>Find the maximum difference between any two adjacent elements of a given array of integers.</title>
<body>

</body>
</html>
```
```

JavaScript Code:

``````function max_difference(arr) {
var max = -1;
var temp;
for (var i = 0; i < arr.length - 1; i++)
{
temp = Math.abs(arr[i] - arr[i + 1]);
max = Math.max(max, temp);
}
return max;
}

console.log(max_difference([1, 2, 3, 8, 9]))
console.log(max_difference([1, 2, 3, 18, 9]))
console.log(max_difference([13, 2, 3, 8, 9]))
```
```

Sample Output:

```5
15
11
```

Flowchart: ES6 Version:

``````function max_difference(arr) {
let max = -1;
let temp;
for (let i = 0; i < arr.length - 1; i++)
{
temp = Math.abs(arr[i] - arr[i + 1]);
max = Math.max(max, temp);
}
return max;
}

console.log(max_difference([1, 2, 3, 8, 9]))
console.log(max_difference([1, 2, 3, 18, 9]))
console.log(max_difference([13, 2, 3, 8, 9]))
``````

Live Demo:

See the Pen javascript-basic-exercise-92 by w3resource (@w3resource) on CodePen.

What is the difficulty level of this exercise?

﻿

## JavaScript: Tips of the Day

Classes/function constructors

```class Person {
constructor() {
this.name = 'Owen';
}
}

Person = class AnotherPerson {
constructor() {
this.name = 'Eddie';
}
};

const member = new Person();
console.log(member.name);
```

We can set classes equal to other classes/function constructors. In this case, we set Person equal to AnotherPerson. The name on this constructor is Eddie, so the name property on the new Person instance member is "Eddie".

Ref: https://bit.ly/3jFRBje