patterns
JSworking6 ex.
Array.reduce patterns
One loop, any shape of answer.
JSworking5 ex.
Closures and the module pattern
Functions that remember.
JSworking3 ex.
Functional JavaScript
Data in, data out.
JSworking5 ex.
Switch vs Lookup
Pick the right shape.
JSintro5 ex.
structuredClone for deep copies
One call, a real deep copy.