Symbol is undefined in IE11

[jhiesey]

In IE11, I get

SCRIPT5009: 'Symbol' is undefined

The error is coming from

readable-stream/lib/_stream_readable.js

Line 944 in bbc3ddc

Readable.prototype[Symbol.asyncIterator] = function () {

[mcollina]

Thanks for reporting this. Would you have time to send a PR for this?

[jhiesey]

@mcollina would you say the appropriate solution would be to feature test Symbol and just not define asyncIterator if it's not available?

[mafintosh]

Yea that sounds like a good approach to me

…

On Mon, Sep 24, 2018, 18:58 John Hiesey ***@***.***> wrote: @mcollina <https://github.com/mcollina> would you say the appropriate solution would be to feature test Symbol and just not define asyncIterator if it's not available? — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#364 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAW_VTH-4p1fqHuz1a-4Lr1fcGcZMtCqks5ueVWOgaJpZM4W3hjO> .

[jhiesey]

OK, so once that's fixed there's a second issue here:

readable-stream/lib/_stream_readable.js

Line 357 in e890201

if (Number.isNaN(n)) {

SCRIPT438: Object doesn't support property or method 'isNaN'

[jhiesey]

Thanks!