javascript and jquery mixed in one line

Question

can pure javascript and Jquery be mixedin one line (with just 1 semicolon) example:

get Element and set it with innerHTML not html
$("#firstelement").innerHTML="hi";

or make element and set it's style with .style.prop, Not .css({"":""});
var b= $("#element1");
var c= $("<div></div>");
c.attr("id","idSecond");
c.append(b);
$("#idSecond").style.width= "200px";

Look at the last line - second code, is that possible?

Thanks for your time

Answer 1

You can not mix JS and jQuery like this:
$("#firstelement").innerHTML="hi";

but, you can add [0] and it will works:
$("#firstelement")[0].innerHTML="hi";
$("#idSecond")[0].style.width= "200px";

or use jQuery methods:
$("#firstelement").html("hi");
$("#idSecond").css('width', "200px");