String.prototype.contains

[jgillich]

See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/contains

Traceur seems to implement it: https://github.com/google/traceur-compiler/blob/9fddf9687bb4ddb7db21f05633d1ebbd6f815165/src/runtime/polyfills/String.js#L69

Any way to use it with this transform? It doesn't work currently, I've tried. :)

[thlorenz]

Can you try again with the newer version (we bumped traceur version used).

[jgillich]

No difference with 1.3.

[thlorenz]

Have you tried that this actually works with traceur itself? You can try here.

If it's not working there then es6ify can do nothing about it and you should file a bug with traceur.

[jgillich]

Ok, the issue is that traceur has a runtime component that is not included in es6ify. There is a issue about that here: google/traceur-compiler#1007

Any plans to include it? I'm however not sure if it is a good idea because its quite a bit of code and the great thing about this transform is that it doesn't add much.

[guzart]

You can include it using the browserify#add method, or there's a bower component, and npm standalone package

browserify()
  .add(es6ify.runtime)
  .transform(es6ify)
  ...

[jgillich]

Ah that's neat, thanks!

[thlorenz]

Ah wow, I had assumed you read the readme and already knew that ;)

If that example is not obvious I'm open for improvements.

[jgillich]

I usually read the readme, but it doesn't mention what the runtime is needed for in detail. 😉
I'll send you a PR.