How do I add a variable value into the () of a document.write function?

Answer 1

var x= "Hello"
function myFunc(){
document.write(x)
}
myFunc()

???

Answer 2

var s = "world";
document.write("hello "+s+"!");

Answer 3

var x="hi"
console.log (x) // print hi

Answer 4

I am interesting with this