pass dynamic value in js string html code example

Example 1: how to pass dynamic string in string javascript

const poem = "The Wide Ocean";
const author = "Pablo Neruda";

const favePoem = `My favorite poem is ${poem} by ${author}.`;

Example 2: pass dynamic javascript value to html

function myFunction(no) {
    if (document.getElementById("showHide"+no).style.display=="none")
    {
      document.getElementById("showHide"+no).style.display="block";
    }
    else
    {
      document.getElementById("showHide"+no).style.display="none";
    }
}