How can I turn line breaking into <br /> in Javascript?

Question

In PHP, we can convert a line break to a <br/> through function nl2br.

What about Javascript? How can I do this safely?

I decided to ask the question because I don’t know if a simple replace("\n") fits for all cases of line break.

Answer 1

There is a project in Github called php.js, which proposes to convert PHP functions into Javascript. They port this function as follows:

function nl2br (str, is_xhtml) {
    var breakTag = (is_xhtml || typeof is_xhtml === 'undefined') ? '<br />' : '<br>';
    return (str + '').replace(/([^>\r\n]?)(\r\n|\n\r|\r|\n)/g, '$1' + breakTag + '$2');
}   

Sources:
https://stackoverflow.com/questions/7467840/nl2br-equivalent-in-javascript

http://phpjs.org/functions/nl2br/

Answer 2

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

I put in the Github for future reference.

Source.

Or you can use the tag without the bar.