[Solved] Why might you choose to use an interface instead of a class for data models in Angular? — Ans: Interfaces provide type checking without adding JavaScript code at runtime. | Angular

Angular - TypeScript in Angular

Why might you choose to use an interface instead of a class for data models in Angular?

AInterfaces allow you to write methods with implementation.

BInterfaces can be instantiated like classes.

CInterfaces provide type checking without adding JavaScript code at runtime.

DInterfaces automatically generate HTML templates.

Step-by-Step Solution

Solution:

Step 1: Understand interface vs class differences
Interfaces exist only at compile time for type checking and do not produce JavaScript code.
Step 2: Exclude incorrect statements
Interfaces cannot be instantiated, do not have method implementations, and do not generate HTML.
Final Answer:
Interfaces provide type checking without adding JavaScript code at runtime. -> Option C
Quick Check:
Interfaces = compile-time only types [OK]

Quick Trick: Interfaces vanish after compile, classes produce code [OK]

Common Mistakes:

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