To pass an object as a parameter in JavaScript, use this and prototype. You can try to run the following code to learn how to pass an object −
Example
<html> <head> <script> var func = function(param1) { this.param1 = param1; }; func.prototype.display = function() { return this.param1; }; function display(val) { document.write(val()); } var res = new func(99); display(res.display.bind(res)); </script> </head> </html>