Common modifications for all actions in reducer - reactjs

Question

So here is the problem, I need some modifications to always to be done after each and every action except one. So in order to achieve this I have done the following. Is there a better way to achieve this?
export const reducer = (state, action) => {
switch (action.type) {
case 'AddCheckboxJson': {
return ReducerWrapper({ ...state,objCheckBox:action.payload });
}
case 'insertAt':return ReducerWrapper({
...state,objCheckBox:{...state.objCheckBox,
Values:insertAt(action.payload.index,action.payload.entry,"iDisplayOrder",state.objCheckBox)
}
})
case 'INSERT_ABOVE':
return ReducerWrapper({
...state, objRadio: {
...state.objRadio,
Values: action.payload
}
})
case 'INSERT_BELOVE':
return ReducerWrapper({
...state, objRadio: {
...state.objRadio,
Values: action.payload
}
}),
case 'REPLACE':return { ...action.payload }
default: {
return state;
}
}
};
Here the function ReducerWrapper does the common modification
export const ReducerWrapper = State => {
return {...State,
//modifications done here
}
}

Answer 1

This is really a lot simpler than it probably seems, just return for the two scenarios you don't want to apply the additional state i.e.
export const reducer = (state, action) => {
switch (action.type) {
case 'AddCheckboxJson': {
state = {
...state,
objCheckBox: action.payload
};
}
case 'insertAt': {
state = {
...state,
objCheckBox:{
...state.objCheckBox,
Values: insertAt(
action.payload.index,
action.payload.entry,
"iDisplayOrder",
state.objCheckBox
)
}
}
}
case 'INSERT_ABOVE': {
state = {
...state,
objRadio: {
...state.objRadio,
Values: action.payload
}
}
}
// presumably this should be INSERT_BELOW?
case 'INSERT_BELOVE': {
state = {
...state,
objRadio: {
...state.objRadio,
Values: action.payload
}
}
},
// return the state early in both these scenarios
case 'REPLACE': return { ...action.payload }
default: return state;
}
// run additional state change
return ReducerWrapper(state);
};