onclick =“ javascript：javascript：function（value）;”是什么意思？

Question

I know this - onclick = "javascript: function(value);" . what is the purpose of writing javascript twice as in

onclick = "javascript: javascript: function(value);" ?

please help.

Answer 1

There is no good reason to include the "javascript" protocol. It is most likely an error.

I would also mention that you should consider attaching click events using DOM APIs. For example:

document.getElementById('el').addEventListener('click', function(value) {...});