> but the global `this` you captured still has the same identity as the new > reference.
Interesting, I never knew that. Do you have a code sample to show how to detect or prove that? On Sat, Sep 21, 2019 at 9:05 PM Isiah Meadows <[email protected]> wrote: > > If you look in the proposal's repo, they explain the rationale behind the > identifier: > https://github.com/tc39/proposal-global/ > > Here's a short summary: `globalThis` is the same value you get from > evaluating `this` in the global scope of a sloppy mode script. This is subtly > different than a "global object", which JS has no concept of. There's other > nuances involved, too. > > Concretely, for one example, `globalObject` was explicitly rejected because > in HTML, the global `this` is a proxy of `window`, not the `window` object > itself. The `window` proxy delegates all operations to the current global > `window`, as you might expect. But here's where things get interesting: > during navigation, the window changes, yet the global `this` does not, so if > you define a property, capture the global `this`, and navigate, the property > you just defined will disappear, but the global `this` you captured still has > the same identity as the new reference. > > This file in particular explains the naming side of it in detail: > https://github.com/tc39/proposal-global/blob/master/NAMING.md It covers the > other suggested names here indirectly. > > And do keep in mind much of TC39's members are non-native speakers > themselves, including one of the proposal's biggest champions/fans, Matthias. > So it's not like that concern goes unnoticed - if anything, it gets accounted > for without them even thinking about it. It might also explain why it's > `array.entries()`, `map.entries()`, and similar when the more proper English > name would've been `array.pairs()`, `map.pairs()`, and so on: entries are > really what values from `value[Symbol.iterator]()` represent, and non-native > speakers sometimes misuse "entries" as if it were synonymous with "pairs". > Contrast this with Underscore's `_.pairs`, named by a native English speaker > back in 2012, long before ES6 was a thing, and it stood as precedent for > having `coll.entries()` for various collections. > > On Sat, Sep 21, 2019 at 14:12 #!/JoePea <[email protected]> wrote: >> >> I know it may be too late for this, but I imagine `globalThis` can bring >> confusion to beginners, especially ESL beginners. >> >> Things like `globalObject`, `systemGlobal`, or `globalEntity` would've been >> more intuitive; they make sense in plain English. >> >> Well anyways, have a good weekend! >> >> - Joe >> >> >> _______________________________________________ >> es-discuss mailing list >> [email protected] >> https://mail.mozilla.org/listinfo/es-discuss _______________________________________________ es-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es-discuss
