EventTarget ã®ç¶™æ‰¿å¯èƒ½åŒ–ã«ã‚ˆã‚‹ EventEmitter ã®ä»£æ›¿ | blog.jxck.ioIntro 念願 ã ã£ãŸ EventTarget ã® constructible/subclassable ㌠DOM ã®ä»•æ§˜ã«ãƒžãƒ¼ã‚¸ã•ã‚ŒãŸã€‚ ã“ã‚Œã«ã‚ˆã‚Šã€ã„ã‚ゆる EventEmitter ã®ãƒ–ラウザ移æ¤ãŒä¸è¦ã«ãªã‚‹ã“ã¨ãŒæœŸå¾…ã•ã‚Œã‚‹ã€‚ Allow constructing and subclassing EventTarget Update Chrome Canary 64 ã§å®Ÿè£…ãŒç¢ºèªã§ããŸãŸã‚〠DEMO ã‚’è¿½åŠ ã—ãŸã€‚ EventTarget EventTarget ã«ã¯ addEventListener, removeEventListener, dispatchEvent ãŒå®šç¾©ã•ã‚Œã¦ã„る。 ã“ã‚Œã¯ã€ãƒ–ラウザãŒå†…部ã§ç”Ÿæˆã™ã‚‹ Event ã‚„ã€ä»»æ„ã«ç”Ÿæˆã•ã‚ŒãŸ CustomEvent を発ç«/補足ã™ã‚‹ãŸã‚ã«åˆ©ç”¨ã•ã‚Œã‚‹ã€‚ callback = console.log.bind(con
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