buffer: graduate Blob from experimental and expose as global

.eslintrc.js

@@ -363,6 +363,7 @@ module.exports = {
     BigInt: 'readable',
     BigInt64Array: 'readable',
     BigUint64Array: 'readable',
+    Blob: 'readable',
     DOMException: 'readable',
     Event: 'readable',
     EventTarget: 'readable',

doc/api/buffer.md

@@ -456,10 +456,12 @@ Additionally, the [`buf.values()`][], [`buf.keys()`][], and
 added:
   - v15.7.0
   - v14.18.0
+changes:
+  - version: REPLACEME
+    pr-url: https://github.com/nodejs/node/pull/41270
+    description: No longer experimental.
 -->
 
-> Stability: 1 - Experimental
-
 A [`Blob`][] encapsulates immutable, raw data that can be safely shared across
 multiple worker threads.
 

doc/api/globals.md

@@ -199,6 +199,16 @@ added: v17.3.0
 
 If `abortSignal.aborted` is `true`, throws `abortSignal.reason`.
 
+## Class: `Blob`
+
+<!-- YAML
+added: REPLACEME
+-->
+
+<!-- type=global -->
+
+See {Blob}.
+
 ## Class: `Buffer`
 
 <!-- YAML

lib/.eslintrc.yaml

@@ -37,6 +37,8 @@ rules:
       # disabled with --no-harmony-atomics CLI flag.
     - name: Atomics
       message: "Use `const { Atomics } = globalThis;` instead of the global."
+    - name: Blob
+      message: "Use `const { Blob } = require('buffer');` instead of the global."
     - name: Buffer
       message: "Use `const { Buffer } = require('buffer');` instead of the global."
     - name: DOMException

lib/internal/blob.js

@@ -44,7 +44,6 @@ const {
 const {
   createDeferredPromise,
   customInspectSymbol: kInspect,
-  emitExperimentalWarning,
 } = require('internal/util');
 const { inspect } = require('internal/util/inspect');
 
@@ -134,7 +133,6 @@ class Blob {
    * @constructs {Blob}
    */
   constructor(sources = [], options = {}) {
-    emitExperimentalWarning('buffer.Blob');
     if (sources === null ||
         typeof sources[SymbolIterator] !== 'function' ||
         typeof sources === 'string') {

lib/internal/bootstrap/node.js

@@ -444,6 +444,7 @@ function setupGlobalProxy() {
 
 function setupBuffer() {
   const {
+    Blob,
     Buffer,
     atob,
     btoa,
@@ -456,6 +457,12 @@ function setupBuffer() {
   delete bufferBinding.zeroFill;
 
   ObjectDefineProperties(globalThis, {
+    'Blob': {
+      value: Blob,
+      enumerable: false,
+      writable: true,
+      configurable: true,
+    },
     'Buffer': {
       value: Buffer,
       enumerable: false,