Round off a number to the next multiple of 5 using JavaScript

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In this article, we are given a positive integer n and the task is to round the number to the next whole number divisible by 5. There are various methods to Round off a number to the next multiple of 5 using JavaScript:

Using Math.ceil() method
Using Math.floor() method

Examples:

Input : 46 
Output : 50

Input : 21
Output : 25

Input : 30 
Output : 30

Approach 1:

Take the number in a variable.
Divide it by 5 and get the decimal value.
Take the ceil value of the decimal value by using math.ceil().
Multiply it by 5 to get the result.

Example:

javascript

<script> 
    function round(x) { 
        return Math.ceil(x / 5) * 5; 
    } 
      
    var n = 34; 
    console.log(round(n)); 
</script>

Output:

Approach 2:

Take the number in a variable.
If it is divisible by 5, return the same number.
Else divide it by 5, take the floor value and again multiply it by 5 and add 5 as well.

Example:

javascript

<script> 
    function round(x) { 
        if (x % 5 == 0) { 
            return (Math.floor(x / 5)) * 5; 
        } else { 
            return ((Math.floor(x / 5)) * 5) + 5; 
        } 
    } 
      
    var n = 34; 
    console.log(round(n)); 
</script>