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                # 數組亂序 ``` const?shuffleArray?=?(arr)?=>?arr.sort(()?=>Math.random()?-?0.5) //?測試 const?arr?=?[1,?2,?3,?4,?5,?6,?7,?8,?9,?10]; console.log(shuffleArray(arr)) ``` # 復制到剪貼板 ``` const?copyToClipboard?=?(text)?=> navigator.clipboard?.writeText && navigator.clipboard.writeText(text) //?測試 copyToClipboard("Hello?World!") ``` # 獲取鼠標選中的文本 ``` let text = document.selection.createRange().text; // IE9以下使用 let text = window.getSelection().toString(); // 其他瀏覽器 ``` # 取消處于選中狀態的文字 ``` document.selection.empty(); // IE9以下使用 window.getSelection().removeAllRanges(); // 其他瀏覽器 ``` # 數組去重 ``` const?getUnique?=?(arr)?=>?[...new?Set(arr)] //?測試 const?arr?=?[1,?1,?2,?3,?3,?4,?4,?5,?5]; console.log(getUnique(arr)) ``` # 檢測黑暗模式 ``` const?isDarkMode?=?()?=> window.matchMedia?&& window.matchMedia("(prefers-color-scheme:?dark)").matches //?測試 console.log(isDarkMode()) ``` # 滾動到頂部 滾動到底部 "smooth "來實現平滑的滾動動畫,`block:start` -- 頂部,`block:end` -- 底部。 ``` const?scrollToTop?=?(element)?=> element.scrollIntoView({?behavior:?"smooth",?block:?"start"?}) ``` # 生成隨機顏色 ``` const?generateRandomHexColor?=?()?=> `#${Math.floor(Math.random()?*?0xffffff).toString(16)}`; ```
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