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

JavaScript Basic: Exercise-92 with Solution

Find Max Difference Between Adjacent Elements

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

Visual Presentation:

Sample Solution:

JavaScript Code:

// Function to find the maximum difference between adjacent elements in an array
function max_difference(arr) {
  var max = -1;     // Initialize a variable to store the maximum difference
  var temp;         // Temporary variable to calculate the difference

  // Iterate through the array to find the maximum difference
  for (var i = 0; i < arr.length - 1; i++) {
    temp = Math.abs(arr[i] - arr[i + 1]);  // Calculate the absolute difference
    max = Math.max(max, temp);             // Update the maximum difference
  }

  return max;   // Return the final maximum difference
}

// Example usage
console.log(max_difference([1, 2, 3, 8, 9]));   // 5
console.log(max_difference([1, 2, 3, 18, 9]));  // 15
console.log(max_difference([13, 2, 3, 8, 9]));  // 11 

Output:

5
15
11

Live Demo:

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

Flowchart:

ES6 Version:

// Function to find the maximum difference between consecutive elements in an array
const max_difference = (arr) => {
  let max = -1;   // Initialize the maximum difference variable with -1
  let temp;       // Temporary variable to store the absolute difference

  // Iterate through the array to calculate the differences between consecutive elements
  for (let i = 0; i < arr.length - 1; i++) {
    temp = Math.abs(arr[i] - arr[i + 1]);   // Calculate the absolute difference
    max = Math.max(max, temp);              // Update the maximum difference
  }

  return max;   // Return the final maximum difference
};

// Example usage
console.log(max_difference([1, 2, 3, 8, 9]));   // 5
console.log(max_difference([1, 2, 3, 18, 9]));  // 15
console.log(max_difference([13, 2, 3, 8, 9]));  // 11

Improve this sample solution and post your code through Disqus.

Previous: JavaScript program to find the maximum possible sum of some of its k consecutive numbers (numbers that follow each other in order.) of a given array of positive integers.
Next: JavaScript program to find the maximum difference among all possible pairs of a given array of integers.