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09:10:06  <bterlson>ljharb: can you elaborate?
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11:56:44  <yecril71pl>Hi, why does Date .prototype .setDate return a number rather than a date?
11:57:26  <yecril71pl>I can wrap the result with new Date all right but it still looks weird.
12:19:10  <bterlson>yecril71pl: I wish I knew
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15:49:27  <yecril71pl>I have 2 JS interpreters, one accepts (new Date ('2017-06-21')), the other one accepts only (new Date ('6/21/2017'))
15:50:43  <yecril71pl><URL: https://github.com/tc39 >: Page not found · GitHub
15:51:51  <bterlson>yecril71pl: seems up for me
15:52:14  <yecril71pl><URL: https://tc39.github.io/ecma262/ >: are the chapters supposed to expand?
15:53:10  <bterlson>yecril71pl: in the side toc? Yes
15:53:21  <yecril71pl>They do not expand in MSIE
15:53:29  <bterlson>yecril71pl: all browsers support both those date formats (though the former is interpreted as UTC, the latter in local time)
15:54:04  <yecril71pl>The interpreter that fails on '2017-06-21' is not in a browser
15:55:23  <bterlson>interestingly, that is the only date format that the current spec requires implementations to support
15:55:35  <bterlson>you've got a non-compliant implementation there. Which is it?
15:57:25  <yecril71pl>I am not sure how to ask for that
16:03:16  <yecril71pl>navigator .appVersion gives me 4.0 (compatible; MSIE 7.0; Windows NT 10.0; WOW64; Trident/7.0; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729)
16:05:04  <ljharb>bterlson: conditional, synchronous imports are still a use case that `import()` doesn't solve but nested import statements would
16:05:47  <bterlson>so, cases where you can't use async function?
16:06:05  <bterlson>yecril71pl: you don't have a browser but it has navigator.appversion?
16:06:17  <yecril71pl>yes
16:06:43  <ljharb>bterlson: i mean, i could always use the async variety, but cases where i don't want to.
16:07:23  <yecril71pl>bterlson: No, it is navigator .appVersion
16:08:15  <bterlson>what is the thing called that you are running?
16:10:56  <yecril71pl>mshta
16:13:04  <bterlson>ahh, I bet that's a super old version of jscript
16:13:31  <bterlson>What is the output of `ScriptEngineMajorVersion()` and `ScriptEngineMinorVersion()`
16:14:28  <bterlson>also make sure you have the meta tag `<meta http-equiv="x-ua-compatible" content="ie=edge" />` (though depending on your OS you may still have issues)
16:18:15  <yecril71pl>script engine 11.0
16:20:17  <yecril71pl>Your magic did not change the script engine version but it fixed Date .parse. Thanks so much!
16:27:57  <bterlson>yecril71pl: heh happy to help, you happened to find maybe the only person on the internet who could help you with obscure jscript issues.
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20:03:17  <bterlson>is it just me or does it seem like 1/4 of all tests in test262 are for async generator and related functionality?
20:07:56  <Domenic>this seems plausible given that it's the first time people are using heavy codegen
20:08:14  <Domenic>my understanding is that they haven't even started testing the async part, just the syntax of for-await-of basically
20:08:29  <Domenic>that might be outdated though
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