Transposing Array From (n x m) To (m x n) for javascript

21 Mar 2017, 08:55

JsTips

javascript

This script transposes from an array with n rows x m columns to the array with m rows x n columns. In this script, you can use array of n != m .

array = [
    [a1, b1, c1, d1, e1],
    [a2, b2, c2, d2, e2],
    [a3, b3, c3, d3, e3],
    [a4, b4, c4, d4, e4],
    [a5, b5, c5, d5, e5],
    [a6, b6, c6, d6, e6],
    [a7, b7, c7, d7, e7],
    [a8, b8, c8, d8, e8],
    [a9, b9, c9, d9, e9],
    [a10, b10, c10, d10, e10]
]

var result = [];
for (i in array[0]){
    result.push(array.map(function(e,j){return e[i]}));
}

result = [
    [a1, a2, a3, a4, a5, a6, a7, a8, a9, a10],
    [b1, b2, b3, b4, b5, b6, b7, b8, b9, b10],
    [c1, c2, c3, c4, c5, c6, c7, c8, c9, c10],
    [d1, d2, d3, d4, d5, d6, d7, d8, d9, d10],
    [e1, e2, e3, e4, e5, e6, e7, e8, e9, e10]
]

Transposing Array From (n x m) To (m x n) for javascript

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