Transposes a two-dimensional array.
Array.prototype.map() to create the transpose of the given two-dimensional array.const transpose = arr => arr[0].map((col, i) => arr.map(row => row[i])); transpose([[1, 2, 3], [4, 5, 6], [7, 8, 9], [10, 11, 12]]); // [[1, 4, 7, 10], [2, 5, 8, 11], [3, 6, 9, 12]
Discover the inner workings of JavaScript arrays and learn about the different ways to initialize them.
Easily remove duplicates from a JavaScript array using the built-in Set object, and learn a few other tricks along the way.
Learn how to implement array zipping, a grouping of elements based on position in the original arrays, and its inverse, unzipping.
There are many ways to iterate and transform array data in JavaScript. Learn how each one works and where you should use them.