How to use the immutability-helper/index function in immutability-helper
To help you get started, we’ve selected a few immutability-helper examples, based on popular ways it is used in public projects.
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thinger-io / Mobile-App / src / reducers / lockedAttributes.js View on Github 
update.extend("$auto", function(value, object) {
return object ? update(object, value) : update({}, value);
});
switch (action.type) {CurrentUser: (prev, {mutationResult}) => {
return update(prev, {
CurrentUser: {
$set: mutationResult.data.logIn
}
})
}
}export default function lockedAttributes(
state: LockedAttributesState = initialState,
action: AttributeAction
) {
update.extend("$auto", function(value, object) {
return object ? update(object, value) : update({}, value);
});
switch (action.type) {
case "ATTRIBUTE_LOCK":
return update(state, {
[action.chart]: { $auto: { [action.attribute]: { $set: true } } }
});
case "ATTRIBUTE_UNLOCK":
return update(state, {
[action.chart]: { $auto: { [action.attribute]: { $set: false } } }
});
case "ATTRIBUTE_REMOVE_ALL":
return initialState;
default:
return state;
}
}UserDetails: (prev, { mutationResult }) => {
return update(prev, {
UserDetails: {
$set: mutationResult.data.selectCourse
}
})
}
}immutability-helper
mutate a copy of data without changing the original source
