doc: change examples to use the same data type as the result

doc/api/webstreams.md

@@ -1458,33 +1458,26 @@ added: v16.7.0
   contents of the stream.
 
 ```mjs
-import { arrayBuffer } from 'node:stream/consumers';
+import { buffer as arrayBuffer } from 'node:stream/consumers';
 import { Readable } from 'node:stream';
+import { TextEncoder } from 'node:util';
 
-const items = Array.from(
-  {
-    length: 100
-  },
-  () => 'hello world from consumers!'
-);
+const encoder = new TextEncoder();
+const dataArray = encoder.encode('hello world from consumers!');
 
-const readable = Readable.from(items);
+const readable = Readable.from(dataArray);
 const data = await arrayBuffer(readable);
 console.log(`from readable: ${data.byteLength}`);
 ```
 
 ```cjs
 const { arrayBuffer } = require('node:stream/consumers');
-const { Readable } = require('node:stream');
+const { Readable } = require('stream');
+const { TextEncoder } = require('util');
 
-const items = Array.from(
-  {
-    length: 100
-  },
-  () => 'hello world from consumers!'
-);
-
-const readable = Readable.from(items);
+const encoder = new TextEncoder();
+const dataArray = encoder.encode(['hello world from consumers!']);
+const readable = Readable.from(dataArray);
 arrayBuffer(readable).then((data) => {
   console.log(`from readable: ${data.byteLength}`);
 });
@@ -1502,42 +1495,29 @@ added: v16.7.0
 
 ```mjs
 import { blob } from 'node:stream/consumers';
-import { Readable } from 'node:stream';
 
-const items = Array.from(
-  {
-    length: 100
-  },
-  () => 'hello world from consumers!'
-);
+const dataBlob = new Blob(['hello world from consumers!']);
 
-const readable = Readable.from(items);
+const readable = dataBlob.stream();
 const data = await blob(readable);
 console.log(`from readable: ${data.size}`);
 ```
 
 ```cjs
 const { blob } = require('node:stream/consumers');
-const { Readable } = require('node:stream');
 
-const items = Array.from(
-  {
-    length: 100
-  },
-  () => 'hello world from consumers!'
-);
+const dataBlob = new Blob(['hello world from consumers!']);
 
-const readable = Readable.from(items);
+const readable = dataBlob.stream();
 blob(readable).then((data) => {
   console.log(`from readable: ${data.size}`);
 });
 ```
 
 #### `streamConsumers.buffer(stream)`
 
-<!-- YAML
-added: v16.7.0
--->
+\<!-added: v16.7.0
+\-->
 
 * `stream` {ReadableStream|stream.Readable|AsyncIterator}
 * Returns: {Promise} Fulfills with a {Buffer} containing the full
@@ -1546,31 +1526,23 @@ added: v16.7.0
 ```mjs
 import { buffer } from 'node:stream/consumers';
 import { Readable } from 'node:stream';
+import { Buffer } from 'node:buffer';
 
-const items = Array.from(
-  {
-    length: 100
-  },
-  () => 'hello world from consumers!'
-);
+const dataBuffer = Buffer.from('hello world from consumers!');
 
-const readable = Readable.from(items);
+const readable = Readable.from(dataBuffer);
 const data = await buffer(readable);
 console.log(`from readable: ${data.length}`);
 ```
 
 ```cjs
 const { buffer } = require('node:stream/consumers');
 const { Readable } = require('node:stream');
+const { Buffer } = require('node:buffer');
 
-const items = Array.from(
-  {
-    length: 100
-  },
-  () => 'hello world from consumers!'
-);
+const dataBuffer = Buffer.from('hello world from consumers!');
 
-const readable = Readable.from(items);
+const readable = Readable.from(dataBuffer);
 buffer(readable).then((data) => {
   console.log(`from readable: ${data.length}`);
 });
@@ -1617,7 +1589,7 @@ const items = Array.from(
   })
 );
 
-const readable = Readable.from(items);
+const readable = Readable.from(JSON.stringify(items));
 json(readable).then((data) => {
   console.log(`from readable: ${data.length}`);
 });
@@ -1637,14 +1609,7 @@ added: v16.7.0
 import { json, text, blob, buffer } from 'node:stream/consumers';
 import { Readable } from 'node:stream';
 
-const items = Array.from(
-  {
-    length: 100
-  },
-  () => 'hello world from consumers!'
-);
-
-const readable = Readable.from(items);
+const readable = Readable.from('Hello world from consumers!');
 const data = await text(readable);
 console.log(`from readable: ${data.length}`);
 ```
@@ -1653,14 +1618,7 @@ console.log(`from readable: ${data.length}`);
 const { text } = require('node:stream/consumers');
 const { Readable } = require('node:stream');
 
-const items = Array.from(
-  {
-    length: 100
-  },
-  () => 'hello world from consumers!'
-);
-
-const readable = Readable.from(items);
+const readable = Readable.from('Hello world from consumers!');
 text(readable).then((data) => {
   console.log(`from readable: ${data.length}`);
 });