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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

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:

Flowchart: 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

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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Next: Write a JavaScript program to find the number of times to replace a given number with the sum of its digits until it convert to a single digit number.

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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