JSFiddle - React, Tailwind, and code Playground

JavaScript

var obj = {
    "prop1":"Hello",
    "prop2":{
         "prop1":{
              "prop1":"Tablecloth",
              "prop2":"Indians"
                },
          "prop2":"JuicyJuice"
           },
    "prop3":"Sponge",
    "prop4":{"Bob":"Squarepants"}
};
var walkProps = function(obj) {
    var s = "";
    for(var x in obj)
    {
        if(typeof obj[x] === "string")
            s += obj[x];
        else
            s += walkProps(obj[x]);
    }
    return s;
}
alert(walkProps(obj));