Javascript define a function within event handler

Question

How can I write a function within the onclick event of a button

What I want to do is something similar to this:

<button onclick="(function(){
     console.log('some code here')
 })">My button</button>

Answer 1

You'll need to invoke the function:

<button onclick="(function(){
                     console.log('click')
                 })()">My button</button>