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                >[danger] 使用 JavaScript 的 `reduce` 方法對給定數組進行求和操作可以這樣實現: ```javascript const array = [2200, 2000, 1097, 500, 176, 500, 140, 55, 240, 4000, 3750]; const sum = array.reduce((accumulator, currentValue) => accumulator + currentValue, 0); console.log(sum); // 輸出 16558 ``` 上述代碼中,我們定義了一個數組 `array` 包含了要相加的值。然后使用 `reduce` 方法對數組中的每個元素進行累加操作。在略微復雜的箭頭函數 `(accumulator, currentValue) => accumulator + currentValue` 中,`accumulator` 代表累加的結果,`currentValue` 代表當前遍歷到的元素。初始值 0 被傳遞給 `reduce` 方法作為累加結果的初始值。最終的結果保存在 `sum` 變量中,輸出結果為 16558。
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