Wbe-JS-SandBox

script.js

let sandBox = {
  g: {
    document: {
      write: function() {
        document.writeln("document.write is unavailable <br>");
      }
    }
  }, // new Proxy()    https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Global_Objects/Proxy
  evals: []
};

sandBox.evals.push('document.write("233<br>");');

eval(sandBox.evals[0]);

with (sandBox.g) {
  eval(sandBox.evals[0]);
} //https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Statements/with

Wbe-JS-SandBox.markdown

Wbe-JS-SandBox

A Pen by MUEDSA on CodePen.

License.