TypeScript for Beginners - String Indexed Array Interfaces

The video tutorial explains how to use string types as indexes for arrays in TypeScript. It covers defining an interface for student scores, implementing it, and using string indexes to store and retrieve data. The tutorial also discusses looping through arrays with string indexes using the 'for in' loop, highlighting the flexibility and object-like behavior of such arrays.

Describe how the internal representation of a string indexed array is similar to an object.

What does the 'item' variable represent when looping through the student scores?