Welcome to today's session on "Multidimensional Arrays and Their Traversal in TypeScript". Multidimensional arrays in TypeScript are similar to those in other programming languages but with the added benefit of type safety. These arrays store arrays at each index instead of single elements, enabling us to create complex data structures that can model various real-life scenarios. Our goal today is to strengthen your foundational knowledge of multidimensional arrays and how to handle them effectively in TypeScript.

To construct a multidimensional array in TypeScript, we utilize arrays of arrays, incorporating type annotations to specify data types clearly. Here is an example demonstrating how to create and work with 2D static arrays:

All indices in TypeScript arrays are 0-based. In a 1-dimensional array, the [n] notation is used to access the (n+1)th element. For example, in the array ['a', 'b', 'c'], to access the element 'b', you would use array[1] since indices are zero-based.

For multidimensional arrays, each element is itself an array. You can access an entire row (inner array) or a specific element within that row. Let's say you want to access the first row and the second element within that row: