JavaScript開発ã«alertを使ã£ã¦ã„る人必見ï¼ãƒã‚°å‡ºåŠ›ãƒ©ã‚¤ãƒ–ラリ「Blackbird〠| Web活メモ帳JavaScriptã§ãƒã‚°ã‚’表示ã™ã‚‹ã®ã«ä½¿ãˆã‚‹ãƒ©ã‚¤ãƒ–ラリ「Blackbirdã€ã®ã”紹介。 出力ã—ãŸã„メッセージを指定ã™ã‚‹ã ã‘ã§ãã‚Œã„ã«æ•´å½¢ã—ã¦è¡¨ç¤ºã—ã¦ãã‚Œã¾ã™ã€‚ 例ãˆã°ã€ä»¥ä¸‹ã®ã‚ˆã†ãªJavaScriptを実行ã—ã¦ã¿ã¾ã™ã€‚ log.debug( 'this is a debug message' ); log.info( 'this is an info message' ); log.warn( 'this is a warning message' ); log.error( 'this is an error message' ); ↑ã™ã‚‹ã¨ã€ã“ã‚“ãªæ„Ÿã˜ã§ç´ 敵ã«è¡¨ç¤ºã—ã¦ãã‚Œã¡ã‚ƒã„ã¾ã™ã€‚ アイコンã¨è‰²ã§è¦–覚的ã«ãƒ¡ãƒƒã‚»ãƒ¼ã‚¸ã‚’区別ã™ã‚‹ã“ã¨ãŒã§ãã‚‹ã®ã§ã€å¾Œã‹ã‚‰è¦‹åˆ†ã‘ã‚‹ã®ã‚‚ç°¡å˜ã§ã™ã€‚ 使ã„æ–¹ 使ã„æ–¹ã¯ç°¡å˜ã§ã€ãƒ•ã‚¡ã‚¤ãƒ«ã‚’ダウンãƒãƒ¼ãƒ‰ã—ãŸå¾Œã€headタグ内ã§JSã¨CSSã‚’èªã¿è¾¼ã‚€ã ã‘ã§OKã§ã™ã€‚ <
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