Re:Why does anyone use Angular in production?
by WorldMaker on Friday November 05, 2021 @12:39PM
(#29121665)
> JSX is not valid JavaScript, it doesn't extend the language in any meaningful way
It's semi-directly related to (subset of a) JavaScript standard which it evolves some of the more useful syntax for some modern needs. It's just not an "active" standard currently targeted by browsers today (in part because it need evolution): ECMA-357 aka E4X aka ECMAScript for XML. [1]
There's currently no interest in adding browser support for JSX (either from the JSX spec itself or any browser makers), just as E4X support waned very quickly when Firefox was the only browser interested in supporting it, but that doesn't mean it is impossible to see browser support at all in the future. It was standardized once, it might be standardized again now that we have a better idea of what it might be used for in the wild. (I don't think it will be, mostly because there's an ecosystem of interesting non-React usages of JSX that would be hampered a bit if it wasn't just a transpiler step.)
It's semi-directly related to (subset of a) JavaScript standard which it evolves some of the more useful syntax for some modern needs. It's just not an "active" standard currently targeted by browsers today (in part because it need evolution): ECMA-357 aka E4X aka ECMAScript for XML. [1]
There's currently no interest in adding browser support for JSX (either from the JSX spec itself or any browser makers), just as E4X support waned very quickly when Firefox was the only browser interested in supporting it, but that doesn't mean it is impossible to see browser support at all in the future. It was standardized once, it might be standardized again now that we have a better idea of what it might be used for in the wild. (I don't think it will be, mostly because there's an ecosystem of interesting non-React usages of JSX that would be hampered a bit if it wasn't just a transpiler step.)
[1] https://en.wikipedia.org/wiki/ECMAScript_for_XML