The easiest way to break lines in JS is, using <br> tag. That's the line breaking tag in HTML.

Example

"Hello test <br> welcome world"

Here is the answer.

document.write("Hello test <br> welcome world")

All the best.

Okay! Add %0D%0A to the place you want to encode a line break on the URL.

• %0D - carriage return character
• %0A - line break character

Example :

"Hello test%0D%0Awelcome world"