TypeScript for Beginners - Array Interfaces

The video tutorial explains how to create interfaces for array types, focusing on numeric and string-based indices. It demonstrates the process of creating a numeric index array in Visual Studio Code, defining an interface for student names, and implementing it. The tutorial also covers error handling when incompatible types are used, emphasizing the importance of matching index and value types.

What are the two types of interfaces you can create for arrays?

• Numeric index and string-based index

• Boolean index and character index

• Numeric index and boolean index

• String-based index and boolean index

What is the first step in implementing a numeric index array interface?

• Create a new file in Visual Studio Code

• Define a variable

• Assign values to the array

• Compile the code

Which keyword is used to define an interface in TypeScript?

• array

• class

• interface

• function

What type of data should the array carry in the example provided?

• Object

• String

• Number

• Boolean

What error occurs if you try to use numbers instead of strings in the array?

• Syntax error

• Logical error

• Runtime error

• Type mismatch error