We can use the Math.ceil method to round up to the next multiple of 5 with JavaScript.
For instance, we can write:
const round5 = (x) => {
return Math.ceil(x / 5) * 5;
}
console.log(round5(18))
We create the round5 function to return the number x divided by 5.
Then we round that number up to the nearest integer with Math.ceil .
Next, we multiply that by 5 to get x rounded up to the nearest integer.
Therefore, the console log logs 20.
