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Spec https://tc39.github.io/proposal-global/ Summary A Stage 3 proposal introduces globalThis, enabling a universal mechanism to access the global object even in strict functions or modules, regardless of the platform. Motivation It is difficult to write portable ECMAScript code which accesses the global object. On the web, it is accessible as window or self or this or frames; on Node.js, it is global or this; among those, only this is available in a shell like V8's d8. In a standalone function call in sloppy mode, this works too, but it's undefined in modules or in strict mode within a function. In such contexts, the global object can still be accessed using Function('return this')(), but that form is incompatible with some CSP settings, such as within Chrome Apps. Interoperability and compatibility risk An earlier version of this proposal had a different name: global. Sadly, this name was found to be not Web-compatible when Firefox shipped it <https://github.com/tc39/proposal-global/issues/20>. After collaborating with other browsers vendors and looking at data on real-world use of JavaScript identifiers on the web, we believe the new name to be Web-compatible. Is this feature fully tested? Yes. In addition to V8's own tests (v8/test/mjsunit/harmony/global*.js), Test262 includes tests for this feature <https://github.com/tc39/test262/search?q=%22features%3A+%5BglobalThis%5D%22> . Tracking bug https://bugs.chromium.org/p/v8/issues/detail?id=5537 Link to entry on the Chrome Platform Status dashboard https://www.chromestatus.com/feature/6571514765770752 Requesting approval to ship? Yes. Note that since this is a V8/JS feature, this post is just an FYI to blink-dev — no signoff from Blink API owners is required. -- -- v8-users mailing list v8-users@googlegroups.com http://groups.google.com/group/v8-users --- You received this message because you are subscribed to the Google Groups "v8-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to v8-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
