Syntax error: missing ) after the argument list?

Question

<button id="btn" onclick="download(http://imageurl) value ="download"><button>    


<script>
  function download(url){
 console.log(url);
var link = document.createElement('a');
              link.href = url;
              link.download = "image.jpg";
              document.body.appendChild(link);
              link.click();}
</script>

Syntax error: ) missing after the argument list?

@TeymurMardaliyerLennon: Not sure you would get that error from the braces missing... for example, Chrome would say: Unexpected end of input — musefan
– musefan, Commented Aug 25, 2016 at 15:29
Pro-tip: format your code correctly. It makes it much easier for people and yourself to debug your code as well as add new functionality. — Mike Cluck
– Mike Cluck, Commented Aug 25, 2016 at 15:37

musefan · Accepted Answer · 2016-08-25 15:32:50Z

3

You are missing quotes in the HTML. Both the close " for the onclick attribute, and you need to wrap your parameter in single quotes to make it a string:

<button id="btn" onclick="download('http://imageurl')" value ="download"><button>

answered Aug 25, 2016 at 15:32

musefan

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Dylan Meeus · Accepted Answer · 2016-08-25 15:40:02Z

2

You have to pass your arguments as a string from within the HTML, in the onclick method.

 <button id="btn" onclick="download('http://imageurl')" value ="download"><button>

The way that you wrote it created a syntax error, and that is why you got that error message.

edited Aug 25, 2016 at 15:40

answered Aug 25, 2016 at 15:30

Dylan Meeus

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1 Comment

musefan Over a year ago

Interesting that your original answer doesn't show in the edit history...

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