大事ãªã“ã¨ã¯å…¨éƒ¨MLãŒæ•™ãˆã¦ãれ㟠〜 Apple ã® Swift ã® mutability 周りã®ä»¶ã‚’ç†è§£ã™ã‚‹ - Oh, you `re no (fun _ → more)開発者アカウントã«é‡‘ãŒå‡ºã›ãªã„貧ä¹äººã®æ–¹ã€…ãŒã€æ¬¡ã® Apple ã® Swift ã®ã‚³ãƒ¼ãƒ‰ã®æŒ™å‹•ãŒã‚ã‹ã‚‰ãªã„ã€ã¨ã„ã†ã®ã§ç››ã‚Šä¸ŠãŒã£ã¦ãŠã‚Šã¾ã™: let a = [1,2] // a = [1,2] var b = a; // b = [1,2] b[1] = 3; // a = [1,3] b = [1,3] b.append(5); // a = [1,3] b = [1,3,5] b[1] = 4; // a = [1,3] b = [1,4,5]ã‚‚ã¡ã‚ã‚“ã‚ãŸã—も貧ä¹ã§ã™ã‹ã‚‰ã‚ã‹ã‚Šã‚„ã™ã„炎上案件を待ã£ã¦ãŠã‚‹ã‚ã‘ã§ã™ã€‚ã“ã‚Œã¯ã‚ã‹ã‚Šã‚„ã™ã„ã‚ã‹ã‚‰ãªã„ãŒæ¥ãŸã。 ã ã„ãŸã„ b[1] = 3 ã¨ã‚„る㨠a[1] も変化ã™ã‚‹ã€ã“ã‚ŒãŒã‚ã‹ã‚‰ãªã„ã¨ã„ã†äºº b[1] = 4 ã¨ã‚„る㨠a[1] ãŒå¤‰åŒ–ã—ãªã„ã€ã“ã‚ŒãŒã‚ã‹ã‚‰ãªã„ã¨ã„ã†äºº 二種類ã„るよã†ã§ã™ã€‚ç§ã¯ã¾ãšã€ b[1] ã«ä»£å…¥ã§ãã‚‹ã“ã¨ãŒã‚ã‹ã‚Šã¾ã›ã‚“
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