The article explains the hidden pitfalls of using JSON.parse(JSON.stringify(obj)) for deep cloning in JavaScript, such as circular references, loss of special types, prototype chain, and collection handling, and introduces the native structuredClone API as a more reliable solution.
The author recounts a debugging saga with Alibaba's Fastjson library, detailing how a global date‑format setting failed on Linux, how an outdated Fastjson version caused the issue, and how circular‑reference detection with $ref can surprise developers, offering practical solutions and version recommendations.
The article examines how Spring Boot handles circular reference serialization with Jackson and Fastjson, demonstrates the role of @ControllerAdvice for global exception capture, explains why Jackson may emit both 200 and 500 responses, and provides practical solutions using annotations and configuration.
The article recounts a developer's experience with FastJson, detailing a date‑format configuration bug caused by an outdated library version, a $ref circular‑reference serialization issue, the debugging steps taken, and broader observations about FastJson's maintenance and feature defaults.
This article recounts the author's real‑world debugging of FastJson, covering unexpected date‑format priority issues on Linux, version mismatches, circular‑reference detection quirks, and practical tips such as disabling specific SerializerFeatures, while also reflecting on the library’s maintenance and migration to FastJson2.
This article explains the fundamentals of iOS memory management, describes common memory‑leak scenarios such as circular references, introduces detection tools like MLeaksFinder and FBRetainCycleDetector, and provides concrete code examples and best‑practice techniques for preventing and fixing retain cycles in production apps.
