Interface NewLifecycle<P, S, SS>

Type parameters

P
S
SS

Hierarchy

NewLifecycle
- ComponentLifecycle

Index

Methods

Methods

Optional componentDidUpdate

componentDidUpdate(prevProps: Readonly<P>, prevState: Readonly<S>, snapshot?: SS): void

- Defined in node_modules/@types/react/index.d.ts:658
Called immediately after updating occurs. Not called for the initial render.

The snapshot is only present if getSnapshotBeforeUpdate is present and returns non-null.

Parameters
- prevProps: Readonly<P>
- prevState: Readonly<S>
- Optional snapshot: SS
Returns void

Optional getSnapshotBeforeUpdate

getSnapshotBeforeUpdate(prevProps: Readonly<P>, prevState: Readonly<S>): null | SS

- Defined in node_modules/@types/react/index.d.ts:652
Runs before React applies the result of render to the document, and returns an object to be given to componentDidUpdate. Useful for saving things such as scroll position before render causes changes to it.

Note: the presence of getSnapshotBeforeUpdate prevents any of the deprecated lifecycle events from running.

Parameters
- prevProps: Readonly<P>
- prevState: Readonly<S>
Returns null | SS

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