JSFiddle - React, Tailwind, and code Playground

JavaScript

$.main = {
    a : function(arg){
        alert('function a - arg: '+arg);
    },
    b : function(){
        alert('b');
    },
    c : function(){
        alert('c');
    },
    call : function(func,arg){
        $.main[func](arg);
    }
};
$.main.call('a','param 1');
$.main.call('b');
$.main.call('c');