9. Behind the Scenes of React and Optimization Opportunities

Learning Objectives

By the end of this chapter, you will be able to do the following:

– Avoid unnecessary component update evaluations via React's memo() function.

– Avoid unnecessary code execution via the useMemo() and useCallback() Hooks.

– Load optional code lazily, only when it's needed, via React's lazy() function.

– Use React's developer tools to analyze your app.