script.js

// this is how to write code in IFFE format and wait for the DOM to load to call certain functions


(function() {
    'use strict';

  
    function function1() {

    }


    function function2() {

    

    }

    function function3(param1, param2, param3, param4) {

 
    }  

    function functionName() {
        
    }

    //Runs after the DOM is loaded
    $(function() {

        functionCall();
        functionCall2();

    });

})();