I have looked around trying to find a solution for my problem but I can't figure out where my code went wrong. I broke up the code into two files on my website so I split them up into html and javascript.
HTML:
<html>
<!--
-->
<script type="text/javascript" src="external_javascript.js"></script>
<form name="imageForm">
<table border=3>
<tr>
<td>
<input onclick="displayImage();" type=button value="Display Random Image">
</td>
</tr>
<tr>
<td>
<img src="blank.jpg" name="canvas" />
</td>
</tr>
</table>
</form>
</html>Javascript:
<html>
<script>
//create an array named imagesArray that contains the seven image file names
//dog.jpg, fox.jpg, mouse.jpg, alligator.jpg, fish.jpg, parrot.jpg and cat.jpg
var imagesArray = ["a.jpg", "b.jpg", "c.jpg", "d.jpg", "e.jpg", "f.jpg", "g.jpg"];
//create a function named displayImage
//it should not have any values passed into it
function displayImage(){
//the first statement should generate a random number in the range 0 to 6 (the subscript values of the image file names in the imagesArray)
var num = Math.floor(Math.random() * (imagesArray.length+1)); // 0...6
//the second statement display the random image from the imagesArray array in the canvas image using the random number as the subscript value
document.canvas.src = imagesArray[num];
}
//remember the subscript values of the array are 0 to 6 (seven elements) zero based array
//you will have to subtract 1 from the random number generated to account for the zero based array
</script>
</html>I also have uploaded to my website manager images that go from a.jpg to z.jpg Thanks in advance!
Your
.js-file should look like this:<html>and<script>are tags of HTML markup.