The state of ES6 on io.js

[ruimarinho]

ES6 feature availability on io.js can have a significant impact on the node developer community. There is an ever increasing demand for ES6-compatible/ready tools and node was on the prehistory regarding ES6. While transpilers have had their fair share on frontend tools, their usage on node is fairly limited due to an unbalanced gain between their added complexity versus the --harmony flag.

While v8 is not particularly known for their efforts on ES6 implementation on the past, that has changed dramatically in the most recent versions, and 3.31.x is a solid proof of that. I'm really glad the TC decided to ship this version of v8 on 1.0.0.

As @rvagg puts it, ES6 can be a "trademark" for io.js. Because of this, I've written a new page dedicated to this topic on a "forked" wiki for discussion. There are probably many things left to add and clarify, but this was the best place I found to start this discussion. If you'd like me to submit a PR in another form, please let me know.

https://github.com/seegno/io.js/wiki/The-state-of-ES6-on-io.js

[rvagg]

This is great @ruimarinho and will be a handy reference when we talk about what io.js can do, please keep it updated!

[shigeki]

@ruimarinho Great work. https://www.chromestatus.com/features#ES6 is also a good reference to check ES6 features in Chromium V8.

[idx3d]

Thats is great! I didn't know that shipping (stable) features will be enabled by default. For me it is one of most important pros of io.js

[Fishrock123]

I didn't know that shipping (stable) features will be enabled by default.

This was always the case in node.

[bnoordhuis]

Apropos ES6 classes, V8 has stated their intent to unship them again for the time being: https://groups.google.com/d/msg/v8-users/To0IehKbwH8/CA9fWRsy7nEJ

[domenic]

I updated a variety of things on that page for accuracy, both from a TC39 perspective and a V8 perspective. I didn't make the classes update yet since I haven't yet checked what flag they moved under.

[cjihrig]

Any reason not to PR this and have it live on the official io.js wiki?

[mreinstein]

@domenic looks like it's --harmony-classes

[mikeal]

I'd actually like to get this in to a normal HTML page on the website. I'll port it myself if necessary.

[domenic]

I just checked, they moved them under staging. v8/v8@a417b41 Will edit.

[snostorm]

@mikeal the same thing crossed my mind (for when io.js has a guides/articles structure.) I opened a ticket (linked in the activity above.)

[Fishrock123]

I'd also like to have this on the website.

at very least, it's worth karma points