Returns a new object with the properties from overrides deeply merged
into target.
In theory this method could merge any objects together, but it's designed for
the common fake data use case of overwriting select properties on a defaulted
base object. When target is T and overrides are constrained to DeepPartial<T>
then the compiler can easily be convinced that the merged output is of type T.
If a key exists on both overrides and target then it will be merged if
both values are objects, or the overrides value will win if it is a
primitive or array.
Keys with falsy values are preserved in the resulting object.
This method doesn't support number or Symbol keys.
Returns a new object with the properties from
overridesdeeply merged intotarget.In theory this method could merge any objects together, but it's designed for the common fake data use case of overwriting select properties on a defaulted base object. When
targetisTandoverridesare constrained toDeepPartial<T>then the compiler can easily be convinced that the merged output is of typeT.If a key exists on both
overridesandtargetthen it will be merged if both values are objects, or theoverridesvalue will win if it is a primitive or array.Keys with falsy values are preserved in the resulting object.
This method doesn't support number or Symbol keys.