vm-browser

Browser polyfill for Node.js VM

Browser compatibility

Works in all modern browsers(Internet Explorer 10+)

Usage

You can use it in 2 ways:

• Add vm.js via script tag
• Copy source code from index.js to your project

API

Make sure to check examples

• vm.Script

  • new vm.Script(code)

    var code = 'console.log("Hello");';
    var script = new vm.Script(code);

  • script.runInContext(context)

    var code = 'console.log(a);';
    var sandbox = { a: 1 };
    var context = vm.createContext(sandbox);
    var script = new vm.Script(code);
    script.runInContext(context);

  • script.runInNewContext(sandbox)

    var code = 'console.log(a);';
    var sandbox = { a: 1 };
    var script = new vm.Script(code);
    script.runInNewContext(sandbox);

  • script.runInThisContext()

    var code = 'console.log(someVar);';
    var script = new vm.Script(code);
    window.someVar = 1;
    script.runInThisContext();

• vm.createContext(sandbox)

  var sandbox = { a: 5, b: 10, c: 'something' };
  var context = vm.createContext(sandbox);

• vm.isContext(sandbox)

  var sandbox = { a: 1 };
  var context = vm.createContext(sandbox);
  vm.isContext(sandbox); // => true
  vm.isContext({}); // => false

• vm.runInContext(code, context)

  var code = 'console.log(a);';
  var sandbox = { a: 1 };
  var context = vm.createContext(sandbox);
  vm.runInContext(code, context);

• vm.runInDebugContext(code)

  Does not work in browsers. Throws Error.

• vm.runInNewContext(code, sandbox)

  var code = 'console.log(a)';
  var sandbox = { a: 1 };
  vm.runInNewContext(code, sandbox);

• vm.runInThisContext(code)

  var code = 'console.log(someVar)';
  window.someVar = 1;
  vm.runInThisContext(code);

Development

• Install

  $ npm install
  

• Lint

  $ npm run lint
  

• Build

  $ npm run build
  

Copyright

ISC © Sergey Nanovsky