Practical articles on JSON, REST APIs, developer tools and common errors — written for developers who want clear, fast answers.
Fix the classic JSONDecodeError: Expecting property name enclosed in double quotes in Python and JavaScript. Learn why single quotes and unquoted keys break JSON and how to fix them.
Fix 'Unexpected non-whitespace character after JSON' in JSON.parse(). Covers concatenated JSON objects, NDJSON streaming data, trailing garbage bytes, and how to parse each correctly.
Expo's app.json controls your app's name, icon, splash screen, permissions, and native build settings — all from one JSON file. Every key that matters, and when you need app.config.js instead.
A practical jq reference — filter, map, select, and reshape JSON from the command line. Field access, iteration, select/map, group_by, raw output, CSV, and NDJSON recipes.
ES2025 standardized importing JSON modules with the `with { type: 'json' }` syntax. How it works, why the type attribute is required, dynamic imports, and the security reason behind it.
This JSON.parse error means a raw newline, tab, or control character is sitting inside a string. Why it happens, how to escape it correctly, and how to stop it at the source.
One tiny interface that Zod, Valibot, and ArkType all implement — so libraries can accept any of them without adapters. What Standard Schema is, why it exists, and how to use it.
JSON is rows of text; Arrow is columns of typed memory. Why analytics engines moved to Arrow, what columnar buys you, and how the two formats actually complement each other.
JSON-RPC 2.0 is a tiny, transport-agnostic remote-call protocol — request, response, error, batch, and notifications. Why it powers MCP, Ethereum, and Language Server Protocol.
How data.gov and other open data portals describe datasets with DCAT JSON-LD — Dataset, Distribution, and catalog records — and how to query a portal's catalog API directly.
Where a JSON Schema check stops and statistical data quality validation begins — Great Expectations' expectation suites and validation results, both expressed as JSON.
The mechanism under 'JSON mode': how a JSON Schema becomes a grammar that masks illegal tokens at generation time, why XGrammar beats retries, and where constrained decoding still bites.
dbt compiles your project into manifest.json — a full JSON graph of models, sources, tests, and dependencies — that powers docs sites, lineage tools, and CI checks.