将 javascript 文件中的变量显示到 html 页面上

Question

Trying to show a the time taken to solve a puzzle but I can't seem to show the time taken on html This is my javascript code for it:

var timer;
var minRem = 5;
var secRem = 0;

It goes through many functions but the variable names remain the same

My html code looks like this:

<script type ="text/javascript" src="Timer2.js">
        </script>
<h3><p>Your time taken to escape was: </p></h3>
        <script>document.write(minRem)</script>

The top line is me trying to connect to my JS file for the timer I think it is something to do with the document.write

Answer 1

<h3><p>Your time taken to escape was: </p></h3><span id="time"></span>

in Timer.js

timeTaken = 30; // this is not relevant to the question
document.getElementById("time").innerText = timeTaken;