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Posted: **06 Apr 2015, 14:49**

Hi,
I have the following code:

<img src="image.png" alt="Image" onclick="test(data)" />

<script>
function test(prm) {
  alert(prm)
  console.log(prm);
}
</script>

When I click on the image, the alert() is not executed, and I get this error in console:

ReferenceError: data is not defined

How to add the "onclick" in the img tag so the test() function alerts the value "data"?

Posted: **06 Apr 2015, 14:55**

Hi,
If the argument is a string, you should add it between quotes, like this:

<img src="image.png" alt="Image" onclick="test('data')" />

Call JavaScript function with parameter in HTML tag