æŸã€Œrubyã§cdrã£ã½ã„事ã—ãŸã„？　drop使ãˆã°è‰¯ã„ã‚“ã˜ã‚ƒãªã„ã§ã™ã‹ï¼Ÿï¼ˆé¼»ãƒ›ã‚¸ã€ã€€ã¼ã「……ã‚ã£ã€ - Bye Bye Moore以å‰ã®è¨˜äº‹ã§ç››å¤§ã«ãƒ‰ãƒ¤ãƒªãƒ³ã‚°ã—ãŸsliceを用ã„ãŸcdrモドã‚。 ã¨ã“ã‚ãŒãƒ‰ãƒƒã‚³ã‚¤ã€ã‚‚ã£ã¨ãƒžãƒˆãƒ¢ãªæ–¹æ³•ãŒã‚ã‚Šã¾ã—ãŸã€‚ carã¯take(1)ã‚ã‚‹ã„ã„ã¯firstã€cdrã¯drop(1)ã§ä»£ç”¨ã§ãã¦ã—ã¾ã—ã¾ã™ã€‚ > ary = (1..10).to_a #=> [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] > ary #=> [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] > ary.drop(1) #=> [2, 3, 4, 5, 6, 7, 8, 9, 10] > ary.take(1) #=> [1] > ary.first #=> 1 > ary #=> [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] ã±ã£ã¨è¦‹ã§ã‚„ã‚ŠãŸã„事ãŒã‚ã‹ã‚Šã¾ã™ã€‚ ãã®ä¸Šã€ã©ã¡ã‚‰ã‚‚éžç ´å£Šã‚ªãƒ³ãƒªãƒ¼ãªã®ã§ã€ä»¥å‰ã‚ˆã‚Šcarã‚„cdrã¨è¿‘ããªã‚Šã¾ã—ãŸã€‚ takeã¨firs
[oh-my-zsh] 便利コマンド - Qiita![[oh-my-zsh] 便利コマンド - Qiita](https://cdn-ak-scissors.b.st-hatena.com/image/square/22e057fc80891600ffbba747bf16d860d1f4502e/height=288;version=1;width=512/https%3A%2F%2Fqiita-user-contents.imgix.net%2Fhttps%253A%252F%252Fqiita-user-contents.imgix.net%252Fhttps%25253A%25252F%25252Fcdn.qiita.com%25252Fassets%25252Fpublic%25252Farticle-ogp-background-afbab5eb44e0b055cce1258705637a91.png%253Fixlib%253Drb-4.0.0%2526w%253D1200%2526blend64%253DaHR0cHM6Ly9xaWl0YS11c2VyLXByb2ZpbGUtaW1hZ2VzLmltZ2l4Lm5ldC9odHRwcyUzQSUyRiUyRnFpaXRhLWltYWdlLXN0b3JlLnMzLmFtYXpvbmF3cy5jb20lMkYwJTJGMTE0NDklMkZwcm9maWxlLWltYWdlcyUyRjE0NzM2ODIwMjc_aXhsaWI9cmItNC4wLjAmYXI9MSUzQTEmZml0PWNyb3AmbWFzaz1lbGxpcHNlJmZtPXBuZzMyJnM9NWRmMDg5YjkyMjg0MWU2ODVjYzc1N2M1MDdhNGM4Njk%2526blend-x%253D120%2526blend-y%253D467%2526blend-w%253D82%2526blend-h%253D82%2526blend-mode%253Dnormal%2526s%253D47c456d9a5709ad37638b177d48c1f0b%3Fixlib%3Drb-4.0.0%26w%3D1200%26fm%3Djpg%26mark64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZ3PTk2MCZoPTMyNCZ0eHQ9JTVCb2gtbXktenNoJTVEJTIwJUU0JUJFJUJGJUU1JTg4JUE5JUUzJTgyJUIzJUUzJTgzJTlFJUUzJTgzJUIzJUUzJTgzJTg5JnR4dC1hbGlnbj1sZWZ0JTJDdG9wJnR4dC1jb2xvcj0lMjMxRTIxMjEmdHh0LWZvbnQ9SGlyYWdpbm8lMjBTYW5zJTIwVzYmdHh0LXNpemU9NTYmdHh0LXBhZD0wJnM9Yzg3ZDNkZTNiNWE3N2Y3NzdmYmFkOTVlYjJkMWQyNGY%26mark-x%3D120%26mark-y%3D112%26blend64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZ3PTgzOCZoPTU4JnR4dD0lNDByeW9wcHkmdHh0LWNvbG9yPSUyMzFFMjEyMSZ0eHQtZm9udD1IaXJhZ2lubyUyMFNhbnMlMjBXNiZ0eHQtc2l6ZT0zNiZ0eHQtcGFkPTAmcz01NDQ5MWU2ODY4N2VjMGU0M2ZiYjhhNzc4NWM4MjlmYQ%26blend-x%3D242%26blend-y%3D480%26blend-w%3D838%26blend-h%3D46%26blend-fit%3Dcrop%26blend-crop%3Dleft%252Cbottom%26blend-mode%3Dnormal%26s%3D165ac7ebb55c8e90e1e8de415389a16b)
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