.mjs ã¨ã¯ä½•ã‹ã€ã¾ãŸã¯ãƒ¢ã‚¸ãƒ¥ãƒ¼ãƒ«ãƒ™ãƒ¼ã‚¹ JS ã¨ã‚¨ã‚³ã‚·ã‚¹ãƒ†ãƒ ã®ä»Šå¾Œ | blog.jxck.ioIntro é•·ã„ã“ã¨è°è«–ã«ãªã£ã¦ã„㟠ES Modules ã® Node ã«ãŠã‘る扱ã„ã«ä¸€å¿œã®æ±ºç€ãŒä»˜ã〠.mjs ã¨ã„ã†æ‹¡å¼µåãŒæŽ¡æŠžã•ã‚ŒãŸã€‚ ã“ã®æ‹¡å¼µåã®æ„味ã¨ã€ä»Šå¾Œãƒ–ラウザã¨åˆã‚ã›ã¦ Universal JS を実装ã—ã¦ã„ã上ã§ã®ä½œæ³•ãŒè¦‹ãˆã¦ããŸã“ã¨ã«ãªã‚‹ã€‚ åˆã‚ã›ã¦ã‚¨ã‚³ã‚·ã‚¹ãƒ†ãƒ ãŒå¯¾å¿œã—ã¦ã„ãã“ã¨ã§ã€é•·å¹´ã®å¤¢ã ã£ãŸ JS ã®ãƒ¢ã‚¸ãƒ¥ãƒ¼ãƒ«åŒ–を進ã‚ã¦ã„ãã“ã¨ãŒã§ãã‚‹ã ã‚ã†ã€‚ ES Modules å¾ã€…ã«æƒã„ã¤ã¤ã‚ã‚‹ ES Modules(ESM) ã®ä»•æ§˜ã¯ TC39 ã§è¡Œã‚ã‚Œã¦ãŠã‚Šã€ãã®ä»•æ§˜ã«ã¤ã„ã¦ã¯ä¸»ã«ä»¥ä¸‹ã®ã‚ˆã†ãªéƒ¨åˆ†ã«ãªã‚‹ã€‚ import ã‚„ export ã¨è¡Œã£ãŸæ§‹æ–‡ module 内ã¯ãƒ‡ãƒ•ã‚©ãƒ«ãƒˆ strict mode module ã§ã‚¹ã‚³ãƒ¼ãƒ—ã‚’é–‰ã˜ã‚‹ module 内㮠this 㯠undefined etc 逆ã«ä»¥ä¸‹ã¯ TC39 ã§ã®ç–定範囲外ã¨ãªã‚‹ ã©ã† Module ã‚’èª
{{#tags}}- {{label}}
{{/tags}}