how to render 32bit unicode characters in google v8 (and nodejs)

Question

does anyone have an idea how to render unicode \'astral plane\' characters (whose CIDs are beyond 0xffff) in google v8, the javascript vm that drives both google chrome and

Answer 1

This recent presentation covers all sorts of issues with Unicode in popular languages, and isn't kind to Javascript: The Good, the Bad, & the (mostly) Ugly

He covers the issue with two-byte representation of Unicode in Javascript:

The UTF‐16 née UCS‐2 Curse

Like several other languages, Javascript suffers from The UTF‐16 Curse. Except that Javascript has an even worse form of it, The UCS‐2 Curse. Things like charCodeAt and fromCharCode only ever deal with 16‐bit quantities, not with real, 21‐bit Unicode code points. Therefore, if you want to print out something like

Answer 2

I think it's a console.log issue. Since console.log is only for debugging do you have the same issues when you output from node via http to a browser?