JS 數組按指定長度切割，返回一個新的數組集合，比如按照3的倍數切割，返回結果爲每三個一組

let data = [ {name:'小趙',value:'12'}, {name:'小錢',value:'12'}, {name:'小孫',value:'12'}, {name:'小李',value:'12'}, {name:'小周',value:'12'}, {name:'小吳',value:'12'}, {name:'小鄭',valu

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