JavaScript: Check three given numbers, if the three numbers are same return 30 otherwise return 20 and if two numbers are same return 40

Last update on May 30 2022 10:00:33 (UTC/GMT +8 hours)

JavaScript Basic: Exercise-41 with Solution

Write a JavaScript program to check three given numbers, if the three numbers are same return 30 otherwise return 20 and if two numbers are same return 40.

Pictorial Presentation:

JavaScript: Check three given numbers, if the three numbers are same return 30 otherwise return 20 and if two numbers are same return 40

Sample Solution:

HTML Code:

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title>JavaScript program to check three given numbers, if the three numbers are same return 30 otherwise return 20 and if two numbers are same return 40.</title>
</head>
<body>

</body>
</html>

JavaScript Code:

function three_numbers(x, y, z) {
  if (x == y && y == z) {
    return 30;
  }

  if (x == y || y == z || z == x) {
    return 40;
  }

  return 20;
}
console.log(three_numbers(8, 8, 8));
console.log(three_numbers(8, 8, 18));
console.log(three_numbers(8, 7, 18));

Sample Output:

30
40
20

Flowchart:

ES6 Version:

function three_numbers(x, y, z) {
  if (x == y && y == z) {
    return 30;
  }

  if (x == y || y == z || z == x) {
    return 40;
  }

  return 20;
}
console.log(three_numbers(8, 8, 8));
console.log(three_numbers(8, 8, 18));
console.log(three_numbers(8, 7, 18));

Live Demo:

See the Pen JavaScript: Check three given numbers - basic-ex-41 by w3resource (@w3resource) on CodePen.

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Next: Write a JavaScript program to check if three given numbers are increasing in strict mode or in soft mode.

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