Converting Comma-Separated Values (CSV) to JavaScript Object Notation (JSON) represents a shift from flat, relation-less data to nested, hierarchical data.
The Structural Difference
CSV is strictly two-dimensional (rows and columns). JSON supports arrays, objects, booleans, and null values. A robust converter must guess or be instructed on data types during the conversion.
Parsing Pitfalls
- Escaping: A standard CSV parser must handle quotes within fields, newlines within fields, and varying delimiter types (tabs vs commas).
- Type Inference: If a column contains "00123", should it be parsed as an integer (123) or a string ("00123")? In an archival context, preserving leading zeros requires strictly typing the JSON output as a string.