TSD Academy - JavaScript Junior Action Item 🚀

The purpose of this exercise package is simple - to help you understand fundamental JavaScript concepts. Your goal is to make the tests pass in a TDD(Test-Driven-Development) fashion. 🎯

Getting Started 🛠️

1. Run npm install to install dependencies.
2. Run npm test to run the Jest tests and npm run test:watch to run them in watch mode.
3. Make all the test pass by completing the exercises for each topic.

At the end of the exercise all the test should pass:

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⚠️⚠️⚠️ **Do not use AI tools like Copilot or ChatGPT to solve this Action Item. In most interviews, you will be asked to disabled those.**⚠️⚠️⚠️

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01 - Primitives 🎈

Understand the basic data types in JavaScript. In your terminal run:

npm run test:watch 01_primitives

The tests should fail like this:

Implement the following functions to make the tests pass:

1. getDataType
2. isNullObject

⚠️ Run the tests again and make sure they pass before you move on! ⚠️

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02 - Scope 🌌

Learn about the different scopes in JavaScript.

• Global Scope
• Function Scope
• Block Scope

Run the tests for this section:

npm run test:watch 02_scope

Make the tests pass by completing the code in 02_scope.

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03 - Closures 📦

Get a grasp on how closures work.

• What are closures?
• Why are they useful?

Run the tests for this section:

npm run test:watch 03_closures

Make the tests pass by completing the code in 03_closures.

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04 - Hoisting ⬆️

Dive into the JavaScript hoisting mechanism.

• What gets hoisted?
• What doesn't?

Run the tests for this section:

npm run test:watch 04_hoisting

Make the tests pass by completing the code in 04_hoisting.

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05 - Logic & Control Flow 🔄

Practice the control flow statements in JavaScript.

• while loop
• for loop

Run the tests for this section:

npm run test:watch 05_logic_control_flow

Make the tests pass by completing the code in 05_logic_control_flow.

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06 - Objects 🏢

Learn about the characteristics of objects.

• Properties
• Methods
• Object Equality

Run the tests for this section:

npm run test:watch 06_objects

Make the tests pass by completing the code in 06_objects.

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07 - Arrays 🍇

Understand the different aspects of arrays.

• Creating Arrays
• Array Methods
• Multi-dimensional Arrays

Run the tests for this section:

npm run test:watch 07_arrays

Make the tests pass by completing the code in 07_arrays.

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Resources 📚

• MDN JavaScript Guide
• Eloquent JavaScript

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Getting Feedback & Help

If you have issues with the Action Item, you can ask for help in the Community.

Made with 🧡 in Berlin by @TheSeniorDev