JavaScript 㧠print デãƒãƒƒã‚°æ™‚ã«å¤‰æ•°åを出力ã™ã‚‹ - mizdra's blog数列ã®å’Œã‚’求ã‚るプãƒã‚°ãƒ©ãƒ を作æˆã™ã‚‹ã“ã¨ã«ãªã‚Šã€æ„æ°—æšã€…ã¨ä»¥ä¸‹ã®ã‚ˆã†ãªãƒ—ãƒã‚°ãƒ©ãƒ を書ã„ãŸã¨ã„ã†çŠ¶æ³ã‚’想åƒã—ã¦ä¸‹ã•ã„。 function sum(nums, acc = 0) { if (nums.length === 0) return 0; if (nums.length === 1) return nums[0]; return sum(nums.slice(1), acc + nums[0]); } const nums = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]; console.log(sum(nums)); // expected: 55 一見ã™ã‚‹ã¨ä½•ã‚‚å•é¡Œãªã•ãã†ã«è¦‹ãˆã‚‹ãƒ—ãƒã‚°ãƒ©ãƒ ã§ã™ãŒã€å®Ÿã¯ãƒã‚°ãŒã‚ã‚Šã¾ã™ (皆ã•ã‚“分ã‹ã‚Šã¾ã™ã‹?) *1。実際ã«ä¸Šè¨˜ãƒ—ãƒã‚°ãƒ©ãƒ を実行ã™ã‚‹ã¨ 55 ã§ã¯ãªã 10 ãŒå‡ºåŠ›ã•ã‚Œã¾ã™ã€‚ ã“ã†ã—ãŸå ´é¢ã«éé‡ã™ã‚‹ã¨ã€è‡ªç„¶ã¨ sum
Chrome デベãƒãƒƒãƒ‘ーツールã§çŸ¥ã£ã¦ã„ã‚‹ã¨ã€Webサイトやアプリã®åˆ¶ä½œãŒæ—る便利ãªãƒ†ã‚¯ãƒ‹ãƒƒã‚¯ã®ã¾ã¨ã‚
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