Browser REPL

repl.js

function(module, exports) {
      var __styleE = document.getElementById("style");
      (window.React = parent.React),
        (window.ReactDOM = parent.ReactDOM),
        (window.PropTypes = parent.PropTypes),
        (window._ = parent._),
        (window.axios = parent.axios),
        (window.subscribeEmail = parent.subscribeEmail),
        (window.__REACT_DEVTOOLS_GLOBAL_HOOK__ =
          parent.__REACT_DEVTOOLS_GLOBAL_HOOK__),
        (window.JSC = parent.__jscC);
      var __defaultStyle =
          'body { font-family: -apple-system,BlinkMacSystemFont,Lato,"Segoe UI",Roboto,Oxygen,Ubuntu,Cantarell,"Open Sans","Helvetica Neue",sans-serif } .mountNode { padding: 10px; padding-bottom: 0 } .printLine { white-space: pre-wrap; }',
        __isDev__ = !1,
        renderError = function(e) {
          window.ReactDOM.render(
            window.React.createElement(
              "div",
              { className: "printLine", style: { color: "red" } },
              e
            ),
            document.getElementById("mountNode")
          );
        };
      window.addEventListener(
        "message",
        function(event) {
          if (__isDev__ || ~event.origin.indexOf("https://jscomplete.com")) {
            if (event.data.reset)
              return (
                window.ReactDOM.unmountComponentAtNode(
                  document.getElementById("mountNode")
                ),
                window.ReactDOM.unmountComponentAtNode(
                  document.getElementById("mountNode2")
                ),
                (document.getElementById("mountNode").innerHTML = ""),
                void (document.getElementById("mountNode2").innerHTML = "")
              );
            if (event.data.error) return void renderError(event.data.error);
            if (
              (event.data.css &&
                (__styleE.textContent = __defaultStyle + event.data.css),
              event.data.code)
            ) {
              if (
                event.data.code.match(
                  /\b(eval|postMessage|new Function|iframe|cookie|localStorage|sessionStorage)\b/
                )
              )
                throw new Error("Unable to execute code");
              try {
                eval(event.data.code);
              } catch (e) {
                renderError(e.toString());
              }
            }
            var mountNode = document.getElementById("mountNode");
            parent.postMessage(
              { id: "__jscF", html: mountNode.innerHTML },
              __isDev__ ? "*" : "https://jscomplete.com"
            );
          }
        },
        !0
      );
    }