immutable-essentials

Essential helper functions for managing immutable state. This is especially useful to write reducers for Redux or useReducer React Hook.

What's available:

• clone: creates a shallow clone of an object
• del: deletes a property from a object at a given path
• get: gets a property value from a object at a given path
• pick: creates a new object with selected properties from an object
• set: sets a property value at a given path

Example

A simple reducer that is compatible with Redux and useReducer React Hook.

import { del, set } from 'immutable-essentials';

export function values(state = {}, action) {
  switch (action && action.type) {
  case 'DEL VALUE': {
    const { payload: { path } } = action;
    return del(state, path);
  }
  case 'SET VALUE': {
    const { payload: { merge, path, value } } = action;
    return set(state, path, value, merge);
  }
  default:
    return state;
  }
}

export default values;

Maintainer

Bill Balmant