Learn about the way React optimizes updates to the DOM.
- [Instructor] Now that we know…what a higher order component is,…we can spend a bit more time…looking at each of the lifecycle methods…that we're going to be talking about today.…When we think of the React lifecycle methods,…we can break them into three distinct categories.…We have our methods that happen during the creating phase,…we have our methods that are happening…during the mounting phase,…and we have those that are part of the updating phase.…You'll actually see that some of these methods…get called in multiple different cycles.…So render, for instance,…happens in both mounting and updating.…You also could argue that constructor is part of creating,…but that's just how we're going to group them today.…
Carl Peaslee helps you build a number of small reusable components that will be useful in future projects. Along the way, he discusses the syntax and uses of lifecycle methods, how state affects React lifecycles and your apps, and how to set static display name, default props, and initial state. Plus, learn how to gather performance data and improve performance by minimizing component updates.
- Overview of React lifecycles
- Initial state
- Default props
- Mounting: componentWillMount, componentDidMount, and render
- Updating: shouldComponentUpdate, componentWillUpdate, and componentDidUpdate
- Controlling component updates
- Using react-addons-perf to get performance data
Skill Level Intermediate
1. Overview of Lifecycles
2. Defaults, Initialization, and Construction
5. Optimizing Components
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