Tobi Schäfer

@yowainwright Apart from the inconvenience to find out which feature caused the error in which file, it looks like an inconsistency to get information about filename and line number in...

Would it be possible to provide the list of unsupported features in a machine-readable format? This way one could use es-check to automatically bundle the needed polyfills: ```shell $ es-check...

Thanks a lot @shadowspawn, very much appreciated! Our code now works flawlessly again with commander.js 😊

Thanks for SparkleShare. It will remain a beautiful project. And thanks for posting this information. All the best! :sparkles:

The option is called `--checkFeatures` (now), correct? I was bitten by this, as `es-check` claims the following code (just a simplified reproduction) is not es2017-compatible: ```js Array.prototype.at = function(index) {...