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javascript get the length of the two-dimensional array (number)
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2020-09-18 21:42:38
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获取行数,即每一列的长度: row = array.length; 获取列数,即每一行的长度: col = array[0].length (长度相同) arr[i].length(长度不同);
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blog.csdn.net/a1059526327/article/details/108335754
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