JavaScript: dependable data and services
Bridge fundamentals and advanced systems with aggregation, search, retry budgets and idempotent events.
Prerequisite: JavaScript foundations · 115 minutes of guided study
4 published lessons, from first principles to a small project.
Open interactive course →Bridge · From syntax to engineering
- Aggregate without mutating the input25 min →
Separate reading data from changing your result.
- Find the first matching value with binary search25 min →
Maintain a search interval whose boundaries have precise meanings.
- Plan bounded retries25 min →
A retry policy needs both a delay limit and a total budget.
- Project · Apply each ledger event once40 min →
A repeated identifier must keep the same meaning.