{"id":431,"date":"2026-06-30T10:40:01","date_gmt":"2026-06-30T01:40:01","guid":{"rendered":"https:\/\/www.marchboy.xyz\/wordpress\/?p=431"},"modified":"2026-06-30T10:42:44","modified_gmt":"2026-06-30T01:42:44","slug":"mjs%e3%81%a8%e3%81%af%ef%bc%9f%e3%83%a2%e3%82%b8%e3%83%a5%e3%83%bc%e3%83%ab%e6%96%b9%e5%bc%8f%e3%81%ae%e5%9f%ba%e6%9c%ac%e3%81%a8%e6%b4%bb%e7%94%a8%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.marchboy.xyz\/wordpress\/archives\/431","title":{"rendered":"mjs\u3068\u306f\uff1f\u30e2\u30b8\u30e5\u30fc\u30eb\u65b9\u5f0f\u306e\u57fa\u672c\u3068\u6d3b\u7528\u6cd5"},"content":{"rendered":"

mjs\u30d5\u30a1\u30a4\u30eb\u306e\u6982\u8981<\/h2>\n

mjs\u306fJavaScript\u30e2\u30b8\u30e5\u30fc\u30eb\uff08ESM\uff09\u306e\u62e1\u5f35\u5b50\u3067\u3001ECMAScript 6\uff08ES6\uff09\u3067\u5c0e\u5165\u3055\u308c\u305f\u6a19\u6e96\u7684\u306a\u30e2\u30b8\u30e5\u30fc\u30eb\u30b7\u30b9\u30c6\u30e0\u3092\u5229\u7528\u3059\u308b\u969b\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u5f93\u6765\u306eCommonJS\uff08.js\uff09\u3068\u7570\u306a\u308a\u3001import\/export\u69cb\u6587\u3092\u81ea\u7136\u306b\u8a18\u8ff0\u3067\u304d\u3001\u30d6\u30e9\u30a6\u30b6\u3084Node.js\u306e\u4e21\u65b9\u3067\u7d71\u4e00\u7684\u306b\u6271\u3048\u308b\u70b9\u304c\u7279\u9577\u3067\u3059\u3002<\/p>\n

ESM\u3068CommonJS\u306e\u9055\u3044<\/h2>\n

ESM\u306f\u9759\u7684\u89e3\u6790\u304c\u53ef\u80fd\u3067\u3001\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u4f9d\u5b58\u95a2\u4fc2\u304c\u5b9f\u884c\u524d\u306b\u78ba\u5b9a\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u30c4\u30ea\u30fc\u30b7\u30a7\u30a4\u30ad\u30f3\u30b0\u3084\u5148\u8aad\u307f\uff08preloading\uff09\u304c\u5bb9\u6613\u306b\u306a\u308a\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u5411\u4e0a\u304c\u671f\u5f85\u3067\u304d\u307e\u3059\u3002\u5bfe\u3057\u3066CommonJS\u306f\u52d5\u7684\u306brequire\u3059\u308b\u65b9\u5f0f\u3067\u3001\u5b9f\u884c\u6642\u306b\u8a55\u4fa1\u3055\u308c\u308b\u305f\u3081\u67d4\u8edf\u6027\u306f\u9ad8\u3044\u3082\u306e\u306e\u3001\u6700\u9069\u5316\u304c\u96e3\u3057\u3044\u3068\u3044\u3046\u6b20\u70b9\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

Node.js\u3067\u306emjs\u5229\u7528\u65b9\u6cd5<\/h2>\n

Node.js\u3067\u306f\u3001package.json\u306b “type”: “module” \u3092\u8a2d\u5b9a\u3059\u308b\u304b\u3001\u30d5\u30a1\u30a4\u30eb\u62e1\u5f35\u5b50\u3092 .mjs \u306b\u3059\u308b\u3053\u3068\u3067ESM\u30e2\u30fc\u30c9\u304c\u6709\u52b9\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u30a4\u30f3\u30dd\u30fc\u30c8\u3067\u304d\u307e\u3059\u3002<\/p>\n

“`js
\nimport { readFile } from ‘fs\/promises’;
\nconst data = await readFile(‘.\/data.txt’, ‘utf8’);<\/p>\n

“`<\/p>\n

\u30d6\u30e9\u30a6\u30b6\u3067\u306emjs\u6d3b\u7528<\/h2>\n

\u30d6\u30e9\u30a6\u30b6\u5074\u3067\u306f\u3001script\u30bf\u30b0\u306b type=”module” \u3092\u6307\u5b9a\u3059\u308b\u3060\u3051\u3067 mjs \u30d5\u30a1\u30a4\u30eb\u3092\u76f4\u63a5\u8aad\u307f\u8fbc\u3081\u307e\u3059\u3002\u30e2\u30b8\u30e5\u30fc\u30eb\u306f\u81ea\u52d5\u7684\u306b CORS \u30dd\u30ea\u30b7\u30fc\u306b\u5f93\u3044\u3001\u540c\u4e00\u30aa\u30ea\u30b8\u30f3\u307e\u305f\u306f\u8a31\u53ef\u3055\u308c\u305f\u30aa\u30ea\u30b8\u30f3\u304b\u3089\u53d6\u5f97\u3055\u308c\u307e\u3059\u3002<\/p>\n

\u5b9f\u52d9\u3067\u306e\u6ce8\u610f\u70b9<\/h2>\n

1. \u62e1\u5f35\u5b50\u306e\u7d71\u4e00: \u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u5168\u4f53\u3067 .mjs \u304b .js\uff08type:module\uff09\u3092\u7d71\u4e00\u3057\u3001\u6df7\u5728\u3092\u907f\u3051\u308b\u3002<\/p>\n

2. \u5faa\u74b0\u4f9d\u5b58\u306e\u56de\u907f: \u9759\u7684\u89e3\u6790\u304c\u524d\u63d0\u306b\u306a\u308b\u305f\u3081\u3001\u5faa\u74b0\u53c2\u7167\u304c\u3042\u308b\u3068\u30a8\u30e9\u30fc\u306b\u306a\u308b\u3053\u3068\u304c\u3042\u308b\u3002<\/p>\n

3. \u30c7\u30d5\u30a9\u30eb\u30c8\u30a8\u30af\u30b9\u30dd\u30fc\u30c8\u3068\u540d\u524d\u4ed8\u304d\u30a8\u30af\u30b9\u30dd\u30fc\u30c8\u306e\u4f7f\u3044\u5206\u3051: \u8aad\u307f\u3084\u3059\u3055\u3068\u4fdd\u5b88\u6027\u3092\u8003\u616e\u3057\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u9069\u5207\u306b\u9078\u629e\u3059\u308b\u3002<\/p>\n

\u307e\u3068\u3081<\/h2>\n

mjs \u306f\u30e2\u30c0\u30f3\u306a JavaScript \u958b\u767a\u306b\u304a\u3044\u3066\u6a19\u6e96\u7684\u306a\u30e2\u30b8\u30e5\u30fc\u30eb\u5f62\u5f0f\u3092\u63d0\u4f9b\u3057\u3001Node.js \u3068\u30d6\u30e9\u30a6\u30b6\u306e\u4e21\u65b9\u3067\u30b7\u30fc\u30e0\u30ec\u30b9\u306b\u5229\u7528\u3067\u304d\u307e\u3059\u3002ESM \u306e\u7279\u6027\u3092\u6d3b\u304b\u3059\u3053\u3068\u3067\u3001\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u30fb\u4fdd\u5b88\u6027\u30fb\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002\u5c0e\u5165\u6642\u306f\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u8a2d\u5b9a\u3068\u4f9d\u5b58\u95a2\u4fc2\u306e\u7ba1\u7406\u306b\u6ce8\u610f\u3057\u306a\u304c\u3089\u3001\u6bb5\u968e\u7684\u306b\u79fb\u884c\u3059\u308b\u3053\u3068\u3092\u304a\u3059\u3059\u3081\u3057\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

mjs\u30d5\u30a1\u30a4\u30eb\u306e\u6982\u8981 mjs\u306fJavaScript\u30e2\u30b8\u30e5\u30fc\u30eb\uff08ESM\uff09\u306e\u62e1\u5f35\u5b50\u3067\u3001ECMAScript 6\uff08ES6\uff09\u3067\u5c0e\u5165\u3055\u308c\u305f\u6a19\u6e96\u7684\u306a\u30e2\u30b8\u30e5\u30fc\u30eb\u30b7\u30b9\u30c6\u30e0\u3092\u5229\u7528\u3059\u308b\u969b\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u5f93\u6765\u306eCommonJS\uff08.js\uff09\u3068\u7570\u306a […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[],"class_list":["post-431","post","type-post","status-publish","format-standard","hentry","category-web"],"_links":{"self":[{"href":"https:\/\/www.marchboy.xyz\/wordpress\/wp-json\/wp\/v2\/posts\/431","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.marchboy.xyz\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.marchboy.xyz\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.marchboy.xyz\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.marchboy.xyz\/wordpress\/wp-json\/wp\/v2\/comments?post=431"}],"version-history":[{"count":2,"href":"https:\/\/www.marchboy.xyz\/wordpress\/wp-json\/wp\/v2\/posts\/431\/revisions"}],"predecessor-version":[{"id":433,"href":"https:\/\/www.marchboy.xyz\/wordpress\/wp-json\/wp\/v2\/posts\/431\/revisions\/433"}],"wp:attachment":[{"href":"https:\/\/www.marchboy.xyz\/wordpress\/wp-json\/wp\/v2\/media?parent=431"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.marchboy.xyz\/wordpress\/wp-json\/wp\/v2\/categories?post=431"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.marchboy.xyz\/wordpress\/wp-json\/wp\/v2\/tags?post=431"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}