javascript - Can't execute simple JS by onclick from a button -

this embarassingly simple. haven't touch js while , can't while clicking on button...

the fiddle shows mean.

click below <div id='holder'></div> <input type='button' value='below' onclick='onclick()'>  function onclick() {   alert('beep'); } 

smack me if it's obvious. is...

you need define function before assign onclick. see here, have updated fiddle.

additionally have commented jquery code, didn't think relevant.