How to transpose a two-dimensional array horizontally and vertically in JS

Below I will share with you a JS method for transposing two-dimensional arrays horizontally and vertically. It has a good reference value and I hope it will be helpful to everyone. Let’s take a look together

I want to rotate a two-dimensional array horizontally and vertically. I don’t believe I am the only one who has this need, but I have searched on Baidu for a long time and searched all over the world...

Later it turned out that Google is still easy to use as the master said~ The first one is, despise Baidu

This record is recorded for the convenience of all Taoist friends (I really want to say "Fellow Immortal" ", the sequelae of being poisoned by a drama recently~~~)

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  var newArray = arr[0].map(function(col, i) {
    return arr.map(function(row) {
    return row[i];
    })
  });

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