Developed at devCodeCamp
Practice using JavaScript's powerful higher-order array methods—map(), filter(), and reduce()—to solve array manipulation challenges. This hands-on lab reinforces functional programming patterns for transforming, filtering, and summarizing data efficiently.
- Learn and apply:
- map() – Transform each element in an array and return a new array of the same length.
- filter() – Select array elements that meet specific conditions and return a new, shorter array.
- reduce() – Aggregate all elements in an array into a single result (sum, average, etc.)
- Search and transform arrays with map()
- Filter datasets dynamically with filter()
- Summarize or aggregate data using reduce()
- Practice problems with immediate feedback via console output
- JavaScript (ES6+)
- Download or clone this repository:
git clone https://github.com/thompsonmikej/AdvancedArrayMethods_Lab_Live.git cd AdvancedArrayMethods_Lab_Live
- Unzip and open in Visual Studio Code (or your preferred editor).
- Open
index.html
with your browser. - Use DevTools Console to view and test your solutions in
app.js
. - Work through each problem from the top of
app.js
, usingconsole.log()
for validation.
- Practiced functional programming thinking to transform, filter, and reduce data efficiently.
- Developed problem-solving skills with core array methods and real-world datasets.
- Gained confidence in chaining and combining multiple array operations for complex data tasks.
- Add more array method challenges (e.g., find(), some(), every()).
- Visualize results directly on the webpage for better interactivity.
- Include performance comparisons and best-practices notes.
Feel free to reach out or connect:
Michael Thompson
https://www.linkedin.com/in/thompsonmikej