applyOptions
applyOptions is a general-purpose utility function used in software development to combine a set of user-provided options with a baseline configuration. It typically takes a source of defaults (or a target configuration) and an options object supplied by the caller, producing a final configuration that governs the behavior of a component, module, or function.
Merging is the core behavior. Most implementations merge defaults with user-supplied values so that provided keys
Return value and side effects depend on the design. ApplyOptions may mutate the target object or return
Validation and normalization are common enhancements. ApplyOptions may validate types, check required fields, coerce values, and
Usage contexts include configuring UI components, API clients, libraries, and frameworks. It is often exposed as
Common pitfalls include unintentionally mutating inputs, relying on brittle merge strategies, or neglecting validation for user-provided