This method is like _.assign except that it accepts customizer which
is invoked to produce the assigned values. If customizer returns undefined
assignment is handled by the method instead. The customizer is invoked
with five arguments: (objValue, srcValue, key, object, source).
This method is like
_.assign
except that it acceptscustomizer
which is invoked to produce the assigned values. Ifcustomizer
returnsundefined
assignment is handled by the method instead. Thecustomizer
is invoked with five arguments: (objValue, srcValue, key, object, source).Note: This method mutates
object
.