JavaScript: Find two elements of the array such that their absolute difference is not greater than a given integer but is as close to the said integer

Last update on May 30 2022 10:07:49 (UTC/GMT +8 hours)

JavaScript Basic: Exercise-104 with Solution

Write a JavaScript program to find two elements of the array such that their absolute difference is not greater than a given integer but is as close to the said integer.

Sample Solution:

HTML Code:

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title> Find two elements of the array such that their absolute difference is not greater than a given integer but is as close to the said integer</title>
</head>
<body>

</body>
</html>

JavaScript Code:

function different_values(ara, n) {
    var max_val = -1;
    for (var i = 0; i < ara.length; i++) {
        for (var j = i + 1; j < ara.length; j++) {
            var x = Math.abs(ara[i] - ara[j]);
            if (x <= n) {
                max_val = Math.max(max_val, x)
            }
        }
    }
    return max_val
}
console.log(different_values([12, 10, 33, 34], 10));
console.log(different_values([12, 10, 33, 34], 24));
console.log(different_values([12, 10, 33, 44], 40));

Sample Output:

2
24
34

Flowchart:

ES6 Version:

function different_values(ara, n) {
    let max_val = -1;
    for (let i = 0; i < ara.length; i++) {
        for (let j = i + 1; j < ara.length; j++) {
            const x = Math.abs(ara[i] - ara[j]);
            if (x <= n) {
                max_val = Math.max(max_val, x)
            }
        }
    }
    return max_val
}
console.log(different_values([12, 10, 33, 34], 10));
console.log(different_values([12, 10, 33, 34], 24));
console.log(different_values([12, 10, 33, 44], 40));

Live Demo:

See the Pen javascript-basic-exercise-104 by w3resource (@w3resource) on CodePen.

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JavaScript: Tips of the Day

How to insert an item into an array at a specific index (JavaScript)?

What you want is the splice function on the native array object.

arr.splice(index, 0, item); will insert item into arr at the specified index (deleting 0 items first, that is, it's just an insert). In this example we will create an array and add an element to it into index 2:

var arr = []; arr[0] = "Jani"; arr[1] = "Hege"; arr[2] = "Stale"; arr[3] = "Kai Jim"; arr[4] = "Borge"; console.log(arr.join()); arr.splice(2, 0, "Lene"); console.log(arr.join());

Ref: https://bit.ly/2BXbp04