Eric Álvarez Chinchilla

Frontend Engineer at @seatcode

Hi, my name is Eric Álvarez Chinchilla. I'm a Frontend Engineer with more than 9 years of experience as a Web Developer working with different frameworks. I have a strong background in React and Angular. Moreover, I also worked on the Backend side with Java and Node.

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Recent posts

System Design Interview: Introductory concepts

9 min read • Level:

What basic concepts should you be familiar with? What is a Single Point of Failure (SPOF)? What components exist in systems?

System Design Interview: The interview

5 min read • Level:

Mastering the art of System Design: Tips and tricks for acing your next interview.

Remove duplicated items from an array

12 min read • Level:

What is the most optimal way to remove duplicated elements? Should we care? Is it fine to apply micro-optimizations?

Typescript: Type inference and explicit typing

5 min read • Level:

What does "inference" mean? How does type inference work? What are the differences between implicit and explicit typing?

Typescript: Use case of the interface merge declaration

2 min read • Level:

Why would someone declare the same interfaces multiple times? There is a special use case where declaration merging makes a lot of sense.

Typescript: Type vs Interface

3 min read • Level:

Which are the differences between types and interfaces?

Typescript: Definition

3 min read • Level:

What is TypeScript? What is a shape? Why would you use it in place of Javascript? When should you choose JavaScript over TypeScript?