Change import from fs to node:fs (#641)

Author: chvmvd

docs/3-web-servers/03-module/_samples/read-file-sync/main.mjs

@@ -1,2 +1,2 @@
-import { readFileSync } from "fs";
+import { readFileSync } from "node:fs";
 console.log(readFileSync("sample.txt", "utf-8"));

docs/3-web-servers/03-module/_samples/write-file-sync/main.mjs

@@ -1,2 +1,2 @@
-import { writeFileSync } from "fs";
+import { writeFileSync } from "node:fs";
 writeFileSync("./sample.txt", "Hello World");

docs/3-web-servers/03-module/index.mdx

@@ -144,7 +144,7 @@ console.log(add(3, 4));
 Node.js の [`fs` 標準モジュール](https://nodejs.org/api/fs.html) を用いると、Node.js からファイルの読み書きを行うことができます。`fs` モジュールの [`readFileSync` 関数](https://nodejs.org/api/fs.html#fsreadfilesyncpath-options)は、ファイルの読み込みを行う関数で、第 1 引数にファイルへのパスを指定し、第 2 引数には文字コードを指定します。
 
 ```javascript title="main.mjs"
-import { readFileSync } from "fs";
+import { readFileSync } from "node:fs";
 console.log(readFileSync("sample.txt", "utf-8"));
 ```
 
@@ -173,7 +173,7 @@ Hello World
 第一引数にファイルへのパス、第二引数に書き込む文字列を指定します。
 
 ```javascript title="main.mjs"
-import { writeFileSync } from "fs";
+import { writeFileSync } from "node:fs";
 writeFileSync("./sample.txt", "Hello World");
 ```
 

docs/3-web-servers/04-server/_samples/ejs-template-engine/main.js

@@ -1,4 +1,4 @@
-import { readFileSync } from "fs";
+import { readFileSync } from "node:fs";
 import express from "express";
 import { render } from "ejs";
 

docs/3-web-servers/04-server/_samples/static-hosting-naive/main.mjs

@@ -1,5 +1,5 @@
 import express from "express";
-import { readFileSync } from "fs";
+import { readFileSync } from "node:fs";
 const app = express();
 
 app.get("/", (request, response) => {

docs/3-web-servers/04-server/index.mdx

@@ -109,7 +109,7 @@ Web サーバーにアクセスするために用いた `http://localhost:3000/`
 
 ```javascript title="main.mjs"
 import express from "express";
-import { readFileSync } from "fs";
+import { readFileSync } from "node:fs";
 const app = express();
 
 app.get("/", (request, response) => {
@@ -226,7 +226,7 @@ document.write(base.replaceAll("C", "T")); // ABTBTT
 
 ```js title="main.mjs"
 import express from "express";
-import { readFileSync } from "fs";
+import { readFileSync } from "node:fs";
 
 const app = express();
 

docs/3-web-servers/05-form/_samples/book-search-system/main.mjs

@@ -1,5 +1,5 @@
 import express from "express";
-import { readFileSync } from "fs";
+import { readFileSync } from "node:fs";
 
 const app = express();
 

docs/3-web-servers/06-get-post/_samples/forum/main.mjs

@@ -1,5 +1,5 @@
 import express from "express";
-import { readFileSync } from "fs";
+import { readFileSync } from "node:fs";
 
 const app = express();
 

docs/3-web-servers/07-database/_samples/forum/main.mjs

@@ -1,6 +1,6 @@
 import express from "express";
 import { PrismaClient } from "@prisma/client";
-import { readFileSync } from "fs";
+import { readFileSync } from "node:fs";
 
 const app = express();
 

docs/3-web-servers/08-cookie/_samples/profile/main.mjs

@@ -1,6 +1,6 @@
 import express from "express";
 import cookieParser from "cookie-parser";
-import { readFileSync } from "fs";
+import { readFileSync } from "node:fs";
 
 const app = express();
 app.use(express.urlencoded({ extended: true }));