JSON, JSONC, and JSON5 look almost identical but break in completely different ways. This guide covers the real grammar constraints, parser compatibility traps, trailing-comma gotchas, and a decision framework to pick the right format for APIs, configs, and CI pipelines.
json
JSON With Node.js: A Complete Guide
Learn how to harness JSON in your Node.js apps—from parsing API responses with JSON.parse and converting objects via JSON.stringify, to reading and writing .json files using the fs module, and shaping payloads for clean REST responses. Master these essentials to keep your JavaScript data flowing smoothly and predictably