This module looks at static versions in React, Props, and Mock Components to use when testing an application.
Learning Objectives
The objectives of this module are to provide you with an understanding of:
- How to be able to build a static version of an application
- How to use Props in components
- How to be able to test Component snapshots and Components with props
- How to be able to Mock components when testing
Intended Audience
This Learning Path is aimed at all who wish to learn how to use the ReactJS framework.
Prerequisites of the Course
It is essential you understand the face of contemporary web development to attend this course. We insist upon JavaScript experience, along with good HTML and CSS skills.
Feedback
We welcome all feedback and suggestions - please contact us at qa.elearningadmin@qa.com to let us know what you think.
React is primarily to taking some data and creating a UI to display it. So, it's important to understand its relationship with data. The most important thing to remember about reacting data is that data flow is unidirectional. Data flows from the top of the component tree to the bottom. It can't flow back up the component tree. React provides two mechanisms for dealing with data. Props and state. We need to think about the stability of the data.
Data that does not change over the lifetime of the component should be considered as props. Data that can change, should be considered a state. State should be the single source of truth for changing data and should be kept in the highest common component of those that need the data. So, any component lower down the tree that depends on it, should receive the data as props.
Lectures
Ed is an Outstanding Trainer in Software Development, with a passion for technology and its uses and holding more than 10 years’ experience.
Previous roles have included being a Delivery Manager, Trainer, ICT teacher, and Head of Department. Ed continues to develop existing and new courses, primarily in web design using: PHP, JavaScript, HTML, CSS, SQL, and OOP (Java), Programming Foundations (Python), and DevOps (Git, CI/CD, etc). Ed describes himself as practically minded, a quick learner, and a problem solver who pays great attention to detail.
Ed’s specialist area is training in Emerging Technologies, within Web Development. Ed mainly delivers courses in JavaScript covering vanilla JS, ES2015+, TypeScript, Angular, and React (the latter is authored by Ed) and has delivered on behalf of Google for PWAs. Ed has also developed a new suite of PHP courses and has extensive experience with HTML/CSS and MySQL.
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.