Question
Configurable circular reference handling in lodash _.cloneDeep
Neel River
0 reputation · 03 Oct 2025, 01:58 UTC
59.7K views0
Configure lodash _.cloneDeep to handle circular object graphs without throwing a TypeError, using a defined replacement value or ignore strategy instead of failing the entire clone operation.
In lodash 4.x, _.cloneDeep tracks visited objects internally but exposes no replacer, ignore list, or error callback for cycles. The thrown error does not identify the property path where the cycle occurs, and no type guard pre-validates graphs before cloning.
Questions to resolve:
- Can _.cloneDeep be configured to replace circular references with a placeholder rather than throw?
- Is there a supported way to capture the cycle path in lodash 4.17.21?
- Should a custom recursive clone be used when circular structures are expected?