JavaScript Newline Character

Question

From this question, this ...

lines = foo.value.split(/\r\n|\r|\n/); 

is one way to split a string, but how do I join it back with newlines?

Also, I wonder if I is say linux which uses whichever newline character, then switch to windows, won't my web app break? The newlines become not recognized? Or maybe the browser does some conversion?

Answer 1

If you want to join using newline characters, just do:

lines.join("\r\n"); 

But if you want to display on the HTML page, you'd want to wrap each line in <p></p> tags:

html = "<p>" + lines.join("</p><p>") + "</p>";