vm.js

Run Javascript code in ECMAScript, without eval(), new Function(), setTimeout()...

It base on https://github.com/bramblex/jsjs

Try it out

Usage

import vm from "@axetroy/vm";

const sanbox = { console: console };

const context = vm.createContext(sanbox);

try {
  vm.runInContext(`console.log("Hello world");`, context);
} catch (err) {
  console.error(err);
}

Support

• ECMA5
• ES2015
  • Let and const
  • Block scoping
  • ES modules
  • Arrow functions
  • Class
  • Computed properties
  • Destructuring
  • For of
  • Function/Class name
  • Literals
  • Object super
  • Default and rest parameters
  • Shorthand properties
  • Spread
  • Template literals
  • Lifting template literal restriction
  • Unicode-regex
  • Generator function
• ES2016
  • Exponentiation operator
• ES2017
  • Trailing commas in function parameter lists and calls
  • Async functions
  • Shared memory and atomics
• ES2018
  • Asynchronous iteration
  • Promise.prototype.finally()
  • s (dotAll) flag for regular expressions
  • RegExp named capture groups
  • RegExp Unicode Property Escapes
• Experimental
  • Object rest spread
  • Class property
  • Do expressions
  • Optional catch binding
  • Decorators
  • Global

Test

I have written a lot of test case for this, look at here

Now it still in development, got a lot of work to do and more detail to resolve.

I will release the first stable version of write 500 test case.

If you want to join it. welcome to PR.

How to run a single test

npx tsc && npx ava ./build/test/ecma5/array/

How to run the whole test

npm run test

Related

bramblex/jsjs

jkeylu/evil-eval

License

The MIT License