JSON to String: Stringify, Serialize, and Escape Properly
JSON to string: stringify, serialize, and escape JSON correctly in JavaScript, Python, and other languages. Covers double-encoding and security pitfalls.
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Tags: json, developer-tools, formatting
JSON to String: Stringify, Serialize, and Escape Properly Turning a JSON value into a string is one of the most common operations in programming, but it's also a source of subtle bugs. Double encoding, broken escaping, and insecure string concatenation are all real problems that appear in production code. Here's how to do it correctly in the languages you're most likely to use. JavaScript: JSON.stringify() is the canonical way to serialize a JavaScript value to a JSON string: With pretty-printing: The three parameters to : — a function or array that filters which keys are included; means include all — indentation: for two spaces, for tabs, omit or for compact Python: json.dumps() Python's equivalent is (dump to string) vs (dump to file): Note the Python-to-JSON type mapping: Python / →…
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