//backtick quotes
//multi line
let guestList = `Guests:
* Agus
* Linda
* Joe
`;
document.getElementById("result").innerText = guestList;
<h1>String</h1>
<h2>Backtick quotes</h2>
<ul>
<li>multiple line</li>
</ul>
<blockquote>
var str1 = `1 + 2 = ${sum(1,2)}`;<br />
result:<br />
<span id="result"></span>
</blockquote>