Although what @machineghost said was true, that events are added and removed the same way, the missing part of the equation was this: A new function reference is created after .bind() is called. See Does bind() change the function reference? | How to set permanently? So, to add or remove it, assign the reference to … Read more
In your case it was some other process that was using the port and as indicated in the comments, sudo netstat -pna | grep 3000 helped you in solving the problem. While in other cases (I myself encountered it many times) it mostly is the same container running at some other instance. In that case … Read more
Actually this is better: var code = e.keyCode || e.which; if(code == 13) { //Enter keycode //Do something }
Bind creates a new function that will force the this inside the function to be the parameter passed to bind(). Here’s an example that shows how to use bind to pass a member method around that has the correct this: var myButton = { content: ‘OK’, click() { console.log(this.content + ‘ clicked’); } }; myButton.click(); … Read more