How do I replace all line breaks in a string with elements?

Question

How can I read the line break from a value with JavaScript and replace all the line breaks with
elements?

Example:

A variable passe

Answer 1

This will turn all returns into HTML

str = str.replace(/(?:\r\n|\r|\n)/g, '
');

In case you wonder what ?: means. It is called a non-capturing group. It means that group of regex within the parentheses won't be saved in memory to be referenced later. You can check out these threads for more information:
https://stackoverflow.com/a/11530881/5042169 https://stackoverflow.com/a/36524555/5042169