js 串N排列組合
數組:[
["1@1.5","1_1@1.6"],
["2@1.5"],
["3@1.5"],
]
第一步:
讓數組里面每個元素不重復組合
結果如下:
["1@1.5","2@1.5","3@1.5"]
["1_1@1.5","2@1.5","3@1.5"]
共2種結果
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拓展:
N值=2
結果如下:
["1@1.5","2@1.5"]
["2@1.5","3@1.5"]
["1@1.5","3@1.5"]
["1_1@1.5","3@1.5"]
["1_1@1.5","2@1.5"]
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