The course is part of this learning path
This module looks at how to manage state in React. You’ll be looking at state management, context, and reducers.
The objectives of this module are to provide you with an understanding of:
- State Management
- How to create and provide context
- How to provide dispatch
This learning path is aimed at all who wish to learn how to use the ReactJS framework.
We welcome all feedback and suggestions - please contact us at firstname.lastname@example.org to let us know what you think.
- [Tutor] If we have a reducer, we need at least one action, perhaps several. Action is usually an argument supplied to a reducer function as an object. Unsurprisingly, it's job is to help the reducer in deciding which execution path to follow to create the new state. An action object usually has at least two properties. The type, this is generally a string that the action is identified by, and the payload. This is the data that has been dispatched as part of the call to update the state. If we're thinking about a reducer for the filter per course is table up, one of the actions we need is to get all of the courses. Another action would be to add a course when the user submits the form, sending data to the server. Because this is all about course's context, we're gonna put the reducer and any of the code we might need in the course's context file we created earlier. If you look on line 15, there's now a courses reducer function. It's not complete as we haven't identified what we'll need to do to return the new state for the actions but it's a start. We haven't mentioned the useReducer hook in React yet.
Introduction to State Management - Context - How to Create and Provide Context - Consume Context - Reducers - The useReducer Hook - Providing Dispatch
Ed is an Outstanding Trainer in Software Development, with a passion for technology and its uses and holding more than 10 years’ experience.
Ed is responsible for delivering QA’s Programming Foundations course using the Eclipse IDE. His skillset extends into the DevOps sphere, where he is able to deliver courses based around Agile/Scrum practices, version control, and CI/CD.