{"id":25543,"date":"2024-10-08T14:48:35","date_gmt":"2024-10-08T05:48:35","guid":{"rendered":"http:\/\/www.tyosuke20xx.com\/blog\/?p=25543"},"modified":"2024-10-08T14:48:38","modified_gmt":"2024-10-08T05:48:38","slug":"node-js-todo-list","status":"publish","type":"post","link":"http:\/\/www.tyosuke20xx.com\/blog\/?p=25543","title":{"rendered":"node-js todo-list"},"content":{"rendered":"\n<p>Node.js \u3067\u306e Todo \u30ea\u30b9\u30c8\u306e\u57fa\u672c\u7684\u306a\u30d5\u30a1\u30a4\u30eb\u69cb\u9020\u3068\u5b9f\u88c5\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30d5\u30a1\u30a4\u30eb\u69cb\u9020<\/h3>\n\n\n\n<pre class=\"wp-block-preformatted\">java\u30b3\u30fc\u30c9\u3092\u30b3\u30d4\u30fc\u3059\u308b<code>\/todo-app\n  \u251c\u2500\u2500 \/node_modules    \/\/ npm\u30d1\u30c3\u30b1\u30fc\u30b8\n  \u251c\u2500\u2500 \/public          \/\/ \u9759\u7684\u30d5\u30a1\u30a4\u30eb\uff08CSS, JS\u306a\u3069\uff09\n  \u2502   \u2514\u2500\u2500 style.css\n  \u251c\u2500\u2500 \/views           \/\/ \u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30d5\u30a1\u30a4\u30eb\uff08HTML, EJS\u306a\u3069\uff09\n  \u2502   \u2514\u2500\u2500 index.ejs\n  \u251c\u2500\u2500 \/routes          \/\/ \u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30d5\u30a1\u30a4\u30eb\n  \u2502   \u2514\u2500\u2500 todos.js\n  \u251c\u2500\u2500 app.js           \/\/ \u30e1\u30a4\u30f3\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30d5\u30a1\u30a4\u30eb\n  \u251c\u2500\u2500 package.json     \/\/ npm\u30d1\u30c3\u30b1\u30fc\u30b8\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\n  \u2514\u2500\u2500 README.md        \/\/ \u8aac\u660e\u66f8\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">1. <code>package.json<\/code><\/h3>\n\n\n\n<pre class=\"wp-block-preformatted\">json\u30b3\u30fc\u30c9\u3092\u30b3\u30d4\u30fc\u3059\u308b<code>{\n  \"name\": \"todo-app\",\n  \"version\": \"1.0.0\",\n  \"description\": \"Simple Todo app with Node.js\",\n  \"main\": \"app.js\",\n  \"scripts\": {\n    \"start\": \"node app.js\"\n  },\n  \"dependencies\": {\n    \"express\": \"^4.18.0\",\n    \"ejs\": \"^3.1.6\",\n    \"body-parser\": \"^1.19.0\"\n  }\n}\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">2. <code>app.js<\/code><\/h3>\n\n\n\n<pre class=\"wp-block-preformatted\">js\u30b3\u30fc\u30c9\u3092\u30b3\u30d4\u30fc\u3059\u308b<code>const express = require('express');\nconst bodyParser = require('body-parser');\nconst app = express();\nconst todoRoutes = require('.\/routes\/todos');\n\napp.set('view engine', 'ejs');\napp.use(bodyParser.urlencoded({ extended: true }));\napp.use(express.static('public'));\n\napp.use('\/', todoRoutes);\n\napp.listen(3000, () =&gt; {\n  console.log('Todo app running on port 3000');\n});\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">3. <code>routes\/todos.js<\/code><\/h3>\n\n\n\n<pre class=\"wp-block-preformatted\">js\u30b3\u30fc\u30c9\u3092\u30b3\u30d4\u30fc\u3059\u308b<code>const express = require('express');\nconst router = express.Router();\n\nlet todos = [];\n\nrouter.get('\/', (req, res) =&gt; {\n  res.render('index', { todos });\n});\n\nrouter.post('\/add', (req, res) =&gt; {\n  const newTodo = req.body.todo;\n  if (newTodo) {\n    todos.push(newTodo);\n  }\n  res.redirect('\/');\n});\n\nrouter.post('\/delete\/:index', (req, res) =&gt; {\n  const index = req.params.index;\n  if (index &gt;= 0 &amp;&amp; index &lt; todos.length) {\n    todos.splice(index, 1);\n  }\n  res.redirect('\/');\n});\n\nmodule.exports = router;\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">4. <code>views\/index.ejs<\/code><\/h3>\n\n\n\n<pre class=\"wp-block-preformatted\">html\u30b3\u30fc\u30c9\u3092\u30b3\u30d4\u30fc\u3059\u308b<code>&lt;!DOCTYPE html&gt;\n&lt;html lang=\"en\"&gt;\n&lt;head&gt;\n  &lt;meta charset=\"UTF-8\"&gt;\n  &lt;meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"&gt;\n  &lt;title&gt;Todo App&lt;\/title&gt;\n  &lt;link rel=\"stylesheet\" href=\"\/style.css\"&gt;\n&lt;\/head&gt;\n&lt;body&gt;\n  &lt;h1&gt;Todo List&lt;\/h1&gt;\n  &lt;form action=\"\/add\" method=\"POST\"&gt;\n    &lt;input type=\"text\" name=\"todo\" placeholder=\"Add a new task\" required&gt;\n    &lt;button type=\"submit\"&gt;Add&lt;\/button&gt;\n  &lt;\/form&gt;\n  &lt;ul&gt;\n    &lt;% todos.forEach((todo, index) =&gt; { %&gt;\n      &lt;li&gt;\n        &lt;%= todo %&gt; \n        &lt;form action=\"\/delete\/&lt;%= index %&gt;\" method=\"POST\" style=\"display:inline;\"&gt;\n          &lt;button type=\"submit\"&gt;Delete&lt;\/button&gt;\n        &lt;\/form&gt;\n      &lt;\/li&gt;\n    &lt;% }) %&gt;\n  &lt;\/ul&gt;\n&lt;\/body&gt;\n&lt;\/html&gt;\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">5. <code>public\/style.css<\/code><\/h3>\n\n\n\n<pre class=\"wp-block-preformatted\">css\u30b3\u30fc\u30c9\u3092\u30b3\u30d4\u30fc\u3059\u308b<code>body {\n  font-family: Arial, sans-serif;\n  margin: 0;\n  padding: 0;\n  text-align: center;\n}\n\nh1 {\n  margin-top: 20px;\n}\n\nform {\n  margin-bottom: 20px;\n}\n\nul {\n  list-style-type: none;\n  padding: 0;\n}\n\nli {\n  margin: 5px 0;\n  display: flex;\n  justify-content: center;\n  align-items: center;\n}\n\nbutton {\n  margin-left: 10px;\n}\n<\/code><\/pre>\n\n\n\n<p>\u3053\u306e\u30b3\u30fc\u30c9\u306f\u3001Node.js \u3092\u4f7f\u7528\u3057\u3066\u30b7\u30f3\u30d7\u30eb\u306a Todo \u30ea\u30b9\u30c8\u3092\u4f5c\u6210\u3059\u308b\u57fa\u672c\u69cb\u9020\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002 <code>express<\/code> \u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3092\u4f7f\u3063\u3066\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u884c\u3044\u3001 <code>ejs<\/code> \u3092\u4f7f\u3063\u3066\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3092\u8868\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>4o<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">\u3042\u306a\u305f:<\/h5>\n\n\n\n<p>\u30b3\u30de\u30f3\u30c9<\/p>\n\n\n\n<h6 class=\"wp-block-heading\">ChatGPT:<\/h6>\n\n\n\n<p>ChatGPT<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u306f\u3001Node.js \u3067\u306e Todo \u30ea\u30b9\u30c8\u30a2\u30d7\u30ea\u3092\u5b9f\u884c\u3059\u308b\u305f\u3081\u306e\u30b3\u30de\u30f3\u30c9\u306e\u624b\u9806\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. \u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u521d\u671f\u5316<\/h3>\n\n\n\n<p>\u6700\u521d\u306b\u65b0\u3057\u3044\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u30d5\u30a9\u30eb\u30c0\u3092\u4f5c\u6210\u3057\u3001\u305d\u306e\u4e2d\u3067\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3092\u521d\u671f\u5316\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">bash\u30b3\u30fc\u30c9\u3092\u30b3\u30d4\u30fc\u3059\u308b<code>mkdir todo-app\ncd todo-app\nnpm init -y\n<\/code><\/pre>\n\n\n\n<p><code>npm init -y<\/code> \u3067 <code>package.json<\/code> \u30d5\u30a1\u30a4\u30eb\u304c\u81ea\u52d5\u751f\u6210\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. \u5fc5\u8981\u306a\u30d1\u30c3\u30b1\u30fc\u30b8\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/h3>\n\n\n\n<p><code>express<\/code>, <code>ejs<\/code>, <code>body-parser<\/code> \u306a\u3069\u306e\u5fc5\u8981\u306a\u30d1\u30c3\u30b1\u30fc\u30b8\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">bash\u30b3\u30fc\u30c9\u3092\u30b3\u30d4\u30fc\u3059\u308b<code>npm install express ejs body-parser\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">3. \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u8d77\u52d5<\/h3>\n\n\n\n<p><code>app.js<\/code> \u3092\u5b9f\u884c\u3057\u3066\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u8d77\u52d5\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">bash\u30b3\u30fc\u30c9\u3092\u30b3\u30d4\u30fc\u3059\u308b<code>node app.js\n<\/code><\/pre>\n\n\n\n<p>\u3053\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u5f8c\u3001\u30d6\u30e9\u30a6\u30b6\u3067 <code>http:\/\/localhost:3000<\/code> \u306b\u30a2\u30af\u30bb\u30b9\u3057\u3066 Todo \u30ea\u30b9\u30c8\u30a2\u30d7\u30ea\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4. \u958b\u767a\u4e2d\u306b\u81ea\u52d5\u7684\u306b\u518d\u8d77\u52d5\u3055\u305b\u305f\u3044\u5834\u5408 (\u30aa\u30d7\u30b7\u30e7\u30f3)<\/h3>\n\n\n\n<p>\u958b\u767a\u4e2d\u306b\u5909\u66f4\u3092\u52a0\u3048\u308b\u305f\u3073\u306b\u30b5\u30fc\u30d0\u30fc\u3092\u81ea\u52d5\u7684\u306b\u518d\u8d77\u52d5\u3055\u305b\u305f\u3044\u5834\u5408\u306f\u3001<code>nodemon<\/code> \u3092\u4f7f\u7528\u3059\u308b\u3068\u4fbf\u5229\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">bash\u30b3\u30fc\u30c9\u3092\u30b3\u30d4\u30fc\u3059\u308b<code>npm install -g nodemon\nnodemon app.js\n<\/code><\/pre>\n\n\n\n<p><code>nodemon<\/code> \u3092\u4f7f\u3046\u3068\u3001\u30b3\u30fc\u30c9\u3092\u5909\u66f4\u3059\u308b\u305f\u3073\u306b\u30b5\u30fc\u30d0\u30fc\u304c\u81ea\u52d5\u3067\u30ea\u30b9\u30bf\u30fc\u30c8\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u78ba\u8a8d\u4e8b\u9805<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30b3\u30de\u30f3\u30c9\u306f\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u5185\u3067\u5b9f\u884c\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n\n\n\n<li>\u30d6\u30e9\u30a6\u30b6\u304b\u3089 <code>http:\/\/localhost:3000<\/code> \u3078\u30a2\u30af\u30bb\u30b9\u3057\u3066\u52d5\u4f5c\u78ba\u8a8d\u304c\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>Node.js \u3067\u306e Todo \u30ea\u30b9\u30c8\u306e\u57fa\u672c\u7684\u306a\u30d5\u30a1\u30a4\u30eb\u69cb\u9020\u3068\u5b9f\u88c5\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002 \u30d5\u30a1\u30a4\u30eb\u69cb\u9020 java\u30b3\u30fc\u30c9\u3092\u30b3\u30d4\u30fc\u3059\u308b\/todo-app \u251c\u2500\u2500 \/node_modules \/\/ npm\u30d1\u30c3\u30b1\u30fc\u30b8 \u251c\u2500\u2500 \/publ &hellip; <a href=\"http:\/\/www.tyosuke20xx.com\/blog\/?p=25543\" class=\"more-link\"><span class=\"screen-reader-text\">&#8220;node-js todo-list&#8221; \u306e<\/span>\u7d9a\u304d\u3092\u8aad\u3080<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[78,139,4],"tags":[138,3],"class_list":["post-25543","post","type-post","status-publish","format-standard","hentry","category-javascript","category-node-js","category-programming","tag-node-js","tag-programming"],"aioseo_notices":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"http:\/\/www.tyosuke20xx.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/25543","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.tyosuke20xx.com\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.tyosuke20xx.com\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.tyosuke20xx.com\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.tyosuke20xx.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=25543"}],"version-history":[{"count":1,"href":"http:\/\/www.tyosuke20xx.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/25543\/revisions"}],"predecessor-version":[{"id":25544,"href":"http:\/\/www.tyosuke20xx.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/25543\/revisions\/25544"}],"wp:attachment":[{"href":"http:\/\/www.tyosuke20xx.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=25543"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.tyosuke20xx.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=25543"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.tyosuke20xx.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=25543"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}