matrix-transpose/cjs/index.js

Transposes a matrix by switching the row and column indices of a multidimensional array.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.transpose = transpose;
function transpose(matrix, options) {
    if (options === void 0) { options = {}; }
    var rowsCount = matrix.length;
    var output = [];
    var excludeEmpty = options.excludeEmpty;
    for (var r = 0; r < rowsCount; r++) {
        var row = matrix[r];
        var columnsCount = row.length;
        for (var c = 0; c < columnsCount; c++) {
            var item = row[c];
            output[c] = output[c] || [];
            if (excludeEmpty) {
                output[c].push(item);
            }
            else {
                output[c][r] = item;
            }
        }
    }
    return output;
}