Marked: Linebreaks doesn't work correctly

[FireflyAndStars]

Hi, if I write:

test1test2
test3test4

Will be rendered as:

<p>test1test2
test3test4</p>

For work correctly I need to add two spaces like:

test1test2

test3test4

That becomes:

<p>test1test2</p>
<p>test3test4</p>

What is wrong? I've used in Vue:
marked(Text);

[UziTech]

That is the way the spec defines a paragraph

https://spec.commonmark.org/0.28/#example-183

https://github.github.com/gfm/#example-183

[FireflyAndStars]

Thank you, but I see other markdown editors that treat every line as a new paragraph.
What specs do I need to use to archive this?
It's possible with this package?

[UziTech]

If you set the breaks and gfm options to true it will add a <br> on every line break

marked("test1test2" + "\n" + "test3test4", {breaks: true, gfm: true});
// <p>test1test2<br>test3test4</p>

demo