intermediate

Coding Interview Prep for Senior Engineers in JavaScript

Computer Programming

5 courses

100 practices

Explore key JavaScript skills for managing and manipulating data in professional settings. This path builds foundational and intermediate expertise in data structures, error handling, and processing large data streams, with practical techniques for handling formats like JSON and CSV.

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Verified skills you'll gain

DEVELOPING

General Programming and Algorithms

INTERMEDIATE

Computer Science Fundamentals

INTERMEDIATE

Requirement Understanding & Implementation

Tools you'll use

JavaScript

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Course 2

Mastering Complex Data Structures in JavaScript

5 lessons

25 practices

In this course, you will expand your knowledge of JavaScript's more advanced features, including comprehensive data structures like objects, sets, and maps, as well as nesting these data structures together, which are crucial for managing more complex data efficiently.

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Course 3

Applying Advanced Data Structures in Practice with Javascript

5 lessons

19 practices

You will apply your knowledge of JavaScript's more advanced features, including comprehensive data structures like objects, sets, maps, and nested arrays in practice. Solving practice challenges will help you master the skills you have just revised.

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Course 4

Projection, Filtering, and Aggregation of Data Streams in JS

5 lessons

23 practices

Focusing on data manipulation operations, this course teaches how to perform data projection, filtering, and aggregation using JavaScript without needing advanced external libraries. You will learn how to use both procedural and functional programming techniques when applying filtering and aggregation on the data stream.

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Course 5

Practicing Intermediate Implementation and Data Streams

3 lessons

13 practices

This course reinforces the principles learned in previous courses through hands-on practice with intermediate-level JavaScript code and data stream manipulations, finalizing preparation for industry-level data handling tasks.

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Faith Yim

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It's an amazing product and exceeded my expectations, helping me prepare for my job interviews. Hands-on learning requires you to actually know what you are doing.

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Full Stack Engineer

I'm really impressed by the AI tutor Cosmo's feedback about my code. It's honestly kind of insane to me that it's so targeted and specific.

Abbey Helterbran

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Senior Machine Learning Engineer

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I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

From our community

Hear what our customers have to say about CodeSignal Learn

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

I love that it's personalized. When I'm stuck, I don't have to hope my Google searches come out successful. The AI mentor Cosmo knows exactly what I need.

Faith Yim

Software Engineer

+14

It's an amazing product and exceeded my expectations, helping me prepare for my job interviews. Hands-on learning requires you to actually know what you are doing.

Alex Bush

Full Stack Engineer

I'm really impressed by the AI tutor Cosmo's feedback about my code. It's honestly kind of insane to me that it's so targeted and specific.

Abbey Helterbran

Tech consultant

I tried Leetcode but it was too disorganized. CodeSignal covers all the topics I'm interested in and is way more structured.

Jonathan Miller

Senior Machine Learning Engineer

+12

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11