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javascriptbrowsergeneratorecmascript-harmonybrowser-feature-detection

How can I feature-detect ES6 generators?

I'm really enjoying ES6 generators. Is there a way I can detect generator support in browsers? I know generators might not be in a lot of browsers (or possible no browsers at all) at the moment, but that's OK for my purposes.

I tried:

try {
  function *(){}
} catch(err) {
  console.log("No generators");
}

But it doesn't seem to work.

How can I detect support for ES6 generators in browsers?

Solution

  • One of the few times that eval is actually the right solution.

    For language construct changes, you need something like this:

    try {
  eval("(function *(){})");
} catch(err) {
  console.log(err);
  console.log("No generators");
}