regular-expressions

BW #139: Chinese exports (solution)

Get better at: Working with multiple Excel files, filtering, regular expressions, multi-indexes, window functions, styling, and plotting with Plotly.

Oct 9, 2025 14 min read paid Featured

BW #139: Chinese exports

Get better at: Working with multiple Excel files, filtering, regular expressions, multi-indexes, window functions, styling, and plotting with Plotly.

Oct 8, 2025 4 min read paid Featured

BW #135: Airline seats (solution)

Get better at: Scraping, working with multiple files, regular expressions, grouping, and pivot tables

Sep 11, 2025 11 min read paid Featured

BW #135: Airline seats

Get better at: Scraping, working with multiple files, regular expressions, grouping, and pivot tables

Sep 10, 2025 2 min read paid Featured

BW #129: Tom Lehrer (solution)

Get better at: Working with multiple files, strings, regular expressions, and Web scraping

Jul 31, 2025 13 min read paid Featured

BW #129: Tom Lehrer

Get better at: Working with multiple files, strings, regular expressions, and Web scraping

Jul 30, 2025 3 min read paid Featured

BW #124: NATO Spending (solution)

Get better at: Working with Excel files, regular expressions, cleaning data, window functions, and plotting.

Jun 26, 2025 15 min read paid Featured

BW #124: NATO Spending

Get better at: Working with Excel files, regular expressions, cleaning data, window functions, and plotting.

Jun 25, 2025 3 min read paid Featured

BW #123: Missiles (solution)

Get better at: Web scraping, pivot tables, grouping, cleaning data, and using regular expressions

Jun 20, 2025 13 min read paid Featured

BW #123: Missiles

Get better at: Web scraping, pivot tables, grouping, cleaning data, and using regular expressions

Jun 19, 2025 3 min read paid Featured

BW #120: Pennies (solution)

Get better at: API usage, JSON manipulation, strings, regular expressions, and grouping

May 29, 2025 13 min read paid Featured

BW #120: Pennies