# TypeScript Learning Index (Python -> TypeScript)

## Foundations

- `01-function-declaration-syntax.md`
- `02-const-and-assignment.md`
- `03-dot-access-and-method-calls.md`
- `04-array-find-and-arrow-functions.md`
- `05-strict-equality-operator.md`
- `06-optional-chaining-operator.md`
- `07-nullish-coalescing-operator.md`
- `08-string-literals.md`
- `09-template-literals.md`
- `10-semicolons.md`
- `11-robust-formatting-style.md`
- `12-python-to-typescript-mini-map.md`

## Date/Interval Logic from your code

- `13-optional-params-and-default-values.md`
- `14-return-type-array-strings.md`
- `15-array-slice-and-indexing.md`
- `16-timestamps-with-gettime.md`
- `17-guard-clauses-and-range-validation.md`
- `18-flatmap-filter-and-map-pattern.md`
- `19-iso-strings-and-template-literals.md`
- `20-alignedstarts-concept.md`

Recommended order: start at `01`, then jump to `13-20` while reading `jsonDownload.ts`.