<html> <head> <title>Event</title> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> </head> <body> <a href="/something">link</a> <script src="../build/build.js"></script> <script> var events = require('event'); var a = document.querySelector('a'); function onclick(e) { e.preventDefault(); console.log(e.target); events.unbind(a, 'click', onclick); } events.bind(a, 'click', onclick); </script> </body> </html>