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Thinking in React: Static Versions

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The course is part of this learning path

Application and Service Development with ReactJS
course-steps 9 certification 5 lab-steps 3
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Static Versions
Overview
DifficultyBeginner
Duration14m
Students10

Description

This module looks at more complex data structures, building on what was covered in the intermediate data structures module.

Learning Objectives 

The objectives of this module are to provide you with an understanding of: 

  • How to construct a factor in R  
  • How to construct a data frame in R  
  • How to modify a data frame  
  • How to subset a data frame
  • Data frames automatically factorising data in R  

Intended Audience 

Aimed at all who wish to learn the R programming language. 

Prerequisites 

No prior knowledge of R is assumed.

Delegates should already be familiar with basic programming concepts such as variables, scope, and functions.

Experience of another scripting language such as Python or Perl would be an advantage.

Understanding mathematical concepts will be beneficial.

Feedback 

We welcome all feedback and suggestions - please contact us at qa.elearningadmin@qa.com to let us know what you think.

Transcript

- Once we have the component hierarchy outlined, we can build a version that takes our data model and renders it without interactivity. Decoupling the view and interactivity is good, as static versions are lots of typing and little thinking and vice versa. The established best practice is to build components that reuse other components and pass data using props. We won't be using state here, because that is used for interactivity. A top-down approach to building our components is as acceptable as a bottom-up approach. Although this bottom-up approach is more common in TDD environments. Doing all this helps to establish a library of reusable components to render each data model from. Each component only has a return JSX expression and any minimal logic to help create it. To effectively do this you need to understand what props are, and the mechanisms that are used to pass props down the component tree. It would also be handy to know about default props, and how you can type safe invalidate props and components using prop types. If you're not familiar with these ideas, I suggest leveling up your skills on props using our lining materials before continuing with the thinking in react track.

About the Author

Students624
Labs8
Courses10
Learning paths3

An outstanding trainer in software development with more than 15 years experience as a Corporate and Apprentice Trainer, ICT Teacher and Head of Department, with a passion for technology and its uses. Continuing to develop existing and new skills and courses, primarily in web design using PHP, JavaScript, HTML, CSS and SQL but also OOP (Java), programming foundations (Using Python), DevOps (Git, CI/CD, etc) and Agile/Scrum. Practically minded, a quick learner and a problem solver with an attention to detail to ensure high quality outcomes.