Line Numbers

Line number at the beginning of code lines.

How to use

Obviously, this is supposed to work only for code blocks (<pre><code>) and not for inline code.

Add the line-numbers class to your desired <pre> or any of its ancestors, and the line-numbers plugin will take care of the rest. To give all code blocks line numbers, add the line-numbers class to the <body> of the page.

Optional: You can specify the data-start (Number) attribute on the <pre> element. It will shift the line counter.

Optional: To support multiline line numbers using soft wrap, apply the CSS white-space: pre-line; or white-space: pre-wrap; to your desired <pre>.

Examples

JavaScript



  

CSS

Please note that this <pre> does not have the line-numbers class but its parent does.



  

HTML

Please note the data-start="-5" in the code below.



  

Unknown languages

This raw text
is not highlighted
but it still has
line numbers

Soft wrap support

Please note the style="white-space:pre-wrap;" in the code below.