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immutable-functions
Advanced tools
A simple, easy, straight forward approach to update immutable data.
A simple, easy, straight forward approach to update immutable data.
$ yarn add immutable-functions
or
$ npm install -s immutable-functions
import _i from 'immutable-functions';
import { CREATE, UPDATE, REMOVE } from '../actions/collection';
export default (state = [], action) => {
switch (action.type) {
case CREATE:
return _i.create(state, action.obj);
case UPDATE:
return _i.update(state, action.obj.id, action.obj);
case REMOVE:
return _i.destroy(state, action.obj.id);
default:
return state;
}
};
import React, { PureComponent } from 'react';
import { View, Text } from 'react-native';
import { connect } from 'react-redux';
import _i from 'immutable-functions';
class YourComponent extends PureComponent {
render() {
// Get the item with id === 5
const item = _i.find(this.props.data, 5)
// item
// {
// id: 5,
// name: Jerry,
// email: jerry@gmail.com
// }
return (
<View>
<Text>Name: {item.name}</Text>
<Text>Email: {item.email}</Text>
</View>
);
}
}
// Here are the properties of the store this component uses
const mapStoreToProps = store => ({
data: store.yourReducer
});
// This is how we connect the store to our component
export default connect(mapStoreToProps)(YourComponent);
_i.create(state, data)
Creates an object if it does not already exist (by id
) in the array.
_i.update(state, id, data)
Updates an object if it exists (by id
) in the array, if it does not exist, it will create it.
_i.destroy(state, id)
Destroys an object if it exists (by id
) in the array.
_i.merge(state, array[, deep])
Merges an object or array of objects (unique by id
) with the current state.
id
_i.find(state, id)
Find an object if it exists (by id
) in the array. Useful in components when accessing the data.
_i.findByProp(state, prop, id)
Find an object if it exists by a property provided in the array. Useful in components when accessing the data.
_i.findByProp(state, 'LoanId', '1234456');
_i.updateByProp(state, prop, id, data)
Updates an object if it exists by an identifier property provided in the array, if it does not exist, it will create it.
_i.updateByProp(state, 'LoanId', action.obj.LoanId, action.obj);
_i.destroyByProp(state, prop, id)
Destroy an object if it exists by an identifier property provided in the array.
_i.destroyByProp(state, 'LoanId', action.obj.LoanId);
_i.mergeByProp(state, array, prop[, deep])
Merges an object or array of objects (unique by prop) with the current state.
FAQs
A simple, easy, straight forward approach to update immutable data.
The npm package immutable-functions receives a total of 492 weekly downloads. As such, immutable-functions popularity was classified as not popular.
We found that immutable-functions demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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