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doc: update description of global #47969

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May 13, 2023
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doc: update description of global #47969

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12 changes: 8 additions & 4 deletions doc/api/globals.md
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Expand Up @@ -513,10 +513,12 @@ added: v0.1.27
* {Object} The global namespace object.

In browsers, the top-level scope is the global scope. This means that
within the browser `var something` will define a new global variable. In
Node.js this is different. The top-level scope is not the global scope;
`var something` inside a Node.js module will be local to that module.
In browsers, the top-level scope has traditionally been the global scope. This
means that `var something` will define a new global variable, except within
ECMAScript modules. In Node.js, this is different. The top-level scope is not
the global scope; `var something` inside a Node.js module will be local to that
module, regardless of whether it is a [CommonJS module][] or an
[ECMAScript module][].

## Class `Headers`

Expand Down Expand Up @@ -982,6 +984,8 @@ added: v18.0.0
A browser-compatible implementation of [`WritableStreamDefaultWriter`][].

[CommonJS module]: modules.md
[ECMAScript module]: esm.md
[Web Crypto API]: webcrypto.md
[`--no-experimental-fetch`]: cli.md#--no-experimental-fetch
[`--no-experimental-global-customevent`]: cli.md#--no-experimental-global-customevent
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