How do I fix a list like this: 1,10,11,12 so it shows up correctly & in order?

How do I fix a menu or website list like this: 1,10,11,12 so it shows up correctly and in order?

Here’s a question I’ve actually gotten several times that has a very easy answer.

Use what is called “leading” zero’s!

Here’s an example…01, 02, 03, 04 and so on. Using a leading zero will place lists items in their correct order when using systems that function by ordering numbers. Simple, but effective!