tsentials-clone

Deep cloning in TypeScript prevents shared-state mutations by recursively copying values and domain objects. You implement a Cloneable<T> contract with a clone(): T method to safely copy class instances without side effects.

structuredClone may be unavailable in React Native and Hermes. A deepClone() function provides a robust recursive fallback to safely copy nested aggregates, Map, Set, and Date objects when native structured cloning fails.

Cloning arrays of class instances in TypeScript uses cloneArray() to iterate elements and call .clone() on each Cloneable<T> object. This produces safe working copies of collections while preserving custom class logic and mutable state.

Deep copying objects with circular references in TypeScript is supported by robust recursive cloning logic. It safely preserves circular structures during the deep clone process without throwing errors or causing infinite loops.

Snapshotting domain objects before applying business rules uses deep cloning to create isolated copies. You implement Cloneable<T> to control how specific classes are copied, ensuring transformations on working data do not affect originals.

Deep cloning unsupported types gracefully degrades instead of throwing errors. The deepClone() function safely handles known structures like TypedArrays and Error subclasses while returning unsupported values unchanged to prevent application crashes.