In alert() is it possible to format using HTML tags such as <h1> <pre>?

Answer 1

with native alert() is not possible.
you can try custom alerts with jqueryUI dialog, or bootstrap modals

Answer 2

@Rich zamani wrote: "someone with more knowledge"

:D

More than @Chirag is quiet possible, but not obvious :P

As @Patricio answered, you cannot.
And you must use '\n' to force break lines, as '<br>' will be literally outputed ^^

He's right too in its suggestion, even if, in addition, you can also do custom alerts just using Html/Css/Js by yourself ( without frameworks and/or libraries )... depending of your needs/wishs and of your skills ( but basics Html outputs are not hard to handle with JS -- skill is important mainly to use advanced Css styling ;) ).

Answer 3

Probably no but still you can try if that happens

Answer 4

I tried but I did not work for me. I was thinking someone with more knowledge help out