empty string

We assign an empty value to create the variable. javascript doesn't just create new variable on the fly.

Think of it this way, you need a box to put you code/toys in. You can't turn around and just assume a box is going to show up when you have to put your toys away.

So you bring a box in before you get ready to put your toys away, this way you know you have a box available for when you ready to.

Does this make sense?

I was talking about the ' html=" "; ' line on the video.

its not technically empty since it stores a space value inside.

True... it's not technically empty I guess you could say.

I see what's going on after another quick watch of the video.

They are using html as a variable. As you are a aware, the title is just used so that it's easy to understand what is in that variable.

In the function below they are appending html code after a loop to the variable.

var html = " "

loop(5 loops){

  var responseFromLoop = i-SomeDetails

// then they take that response and they write it to the global variable. // every time this loops this div will be recreated(for example, I just wrote 5 loops for easy refrenence) html += "<div id="stuff">"; html += responseFromLoop; html =+ "</div>";

}

//when this loop is completed, "html", when written to the page will have 5 different divs in side of it.