JavaScript: Check from three given numbers that two or all of them have the same rightmost digit

Last update on May 30 2022 09:59:32 (UTC/GMT +8 hours)

JavaScript Basic: Exercise-43 with Solution

Write a JavaScript program to check from three given numbers (non negative integers) that two or all of them have the same rightmost digit.

Pictorial Presentation:

JavaScript: Check from three given numbers that two or all of them have the same rightmost digit

Sample Solution:

HTML Code:

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title>JavaScript program to check from three  given numbers (non negative integers) that two  or all of them have the same rightmost digit.</title>
</head>
<body>
</body>
</html>

JavaScript Code:

function same_last_digit(p, q, r) {
    return (p % 10 === q % 10) ||
           (p % 10 === r % 10) ||
           (q % 10 === r % 10);
           
}

console.log(same_last_digit(22,32,42));
console.log(same_last_digit(102,302,2));
console.log(same_last_digit(20,22,45));

Sample Output:

true
true
false

Flowchart:

ES6 Version:

function same_last_digit(p, q, r) {
    return (p % 10 === q % 10) ||
           (p % 10 === r % 10) ||
           (q % 10 === r % 10);
           
}

console.log(same_last_digit(22,32,42));
console.log(same_last_digit(102,302,2));
console.log(same_last_digit(20,22,45));

Live Demo:

See the Pen JavaScript: Check from three given numbers - basic-ex-43 by w3resource (@w3resource) on CodePen.

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Next: Write a JavaScript program to check from three given integers that if a number is greater than or equal to 20 and less than one of the others.

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