JSFiddle - React, Tailwind, and code Playground

JavaScript

window.winScopedFunction = function() {
    alert("ROCK THE WIN");    
}

var namespace = {
  myFunction : function() {
    alert("ROCK ON");
  }
};

var json = {
    a : 1,
    b : 2,
    c : "myFunction", 
    d : "winScopedFunction" 
};

namespace[json.c]();

window[json.d]();