Flash cards
Review the key moves
What is the main idea behind React Introduction?
Lesson checks
Practice each idea before moving on
Short Mimo-style checks built from this lesson's code, terms, and sequence.
Which statement best captures the main point of this lesson?
Put the learning moves in the order that makes the concept easiest to apply.
What is React?
React is a front-end JavaScript library.
React was developed by the Facebook Software Engineer Jordan Walke.
React is also known as React.js or ReactJS.
React is a tool for building UI components.
How does React Work?
React creates a VIRTUAL DOM in memory.
Instead of manipulating the browser's DOM directly, React creates a virtual DOM in memory, where it does all the necessary manipulating, before making the changes in the browser DOM.
React only changes what needs to be changed!
React finds out what changes have been made, and changes only what needs to be changed.
You will learn the various aspects of how React does this in the rest of this tutorial.