Javascript: Math.round() per 0.25?

Question

I would like to round numbers to the nearest 0.25-value like this:

2.1 -> 2
2.2 -> 2.25
3.4 -> 3.5
5.6 -> 5.5
9.8 -> 9.75
9.9 -> 10

Is this possible in javascript? Thank you in advance!

What have you tried so far? – Oliver Charlesworth Oct 21 '18 at 08:06 — Oliver Charlesworth, Oct 21 '18 at 08:06

score 3 · Accepted Answer · answered Oct 21 '18 at 08:07

3

Just multiply the number by 4, round it, and divide by 4:

[2.1, 2.2, 3.4, 5.6, 9.8, 9.8, 9.9].forEach(
  num => console.log(Math.round(num * 4) / 4)
);

answered Oct 21 '18 at 08:07

Thanks that works! Also, now it seems this was asked before. I searched before asking but did not find what I was looking for back then. – Bunwa Oct 21 '18 at 08:17

1 Answers1