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JavaScript JavaScript Loops, Arrays and Objects Simplify Repetitive Tasks with Loops The Refactor Challenge, Part 2

Ernest Son
Ernest Son
13,532 Points
Posted by Ernest Son
Ernest Son
13,532 Points

no return for the print function?

just wondering why there is no "return message" in the print function.....

1 Answer

Jacob Mishkin
Jacob Mishkin
23,117 Points

Lets break down the print function used and maybe we can find out why:

function print(message) {
  var outputDiv = document.getElementById('output');
  outputDiv.innerHTML = message;
}

outputDiv.innerHTML = message;

is the key to your question. .innerHTML sets/returns the HTML value/content of the element. So the print function does return a value but by using innerHTML. This will return the HTML value of the argument that is set by the parameter message in our function. I hope this helps. if you want to learn more about innerHTML take a read.

https://developer.mozilla.org/en-US/docs/Web/API/Element/innerHTML

I hope this helps.