https://caniuse.com/?search=es9
"es9" | Can I use... Support tables for HTML5, CSS3, etc
"Can I use" provides up-to-date browser support tables for support of front-end web technologies on desktop and mobile web browsers.
can i usesupport tablesetc
https://markets.businessinsider.com/news/stocks/nio-stock-gains-from-es9-optimism-does-wall-street-see-more-upside-1036009145
Nio Stock Gains from ES9 Optimism; Does Wall Street See More Upside? | Markets Insider
The U.S.-listed shares of Chinese electric vehicle (EV) maker Nio (NIO) have risen 23% over the past month and 83% over the past year, reflectin...
https://asdc.larc.nasa.gov/project/CERES/CER_ES9_NPP-FM5_Edition1
ASDC | CER_ES9_NPP-FM5_Edition1
asdccernpp
https://mailman.nginx.org/pipermail/nginx-devel/2019-September/012626.html
[njs] Date.prototype.toUTCString() format was aligned to ES9.
njsdateprototypeformataligned