How to use sprintf in Twig to format a number?

Question

I need to format a number. In PHP, I would use sprintf("%05d",$lineNumber).

In a Symfony 2 Twig template, what code should I use?

Answer 1

If i was 4 before, then after adding this to your Twig template:

"%02d"|format(i)

...it will become 04.

Answer 2

Twig provides lots of filters, take a look at format and number_format.