Package Exports
- @rooks/use-previous
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Readme
@rooks/use-previous
Access the previous value of a variable with this React hook
Installation
npm install --save @rooks/use-previousImporting the hook
import usePrevious from "@rooks/use-previous";Usage
function Demo() {
const myInput = useInput("hello world");
const previousValue = usePrevious(myInput.value);
return (
<div>
<div>
<input {...myInput} />
</div>
<p>
Current value is <b>{myInput.value}</b>
</p>
<p>
Previous value was <b>{previousValue || "-"}</b>
</p>
</div>
);
}
render(<Demo />);Arguments
| Argument | Type | Description |
|---|---|---|
| value | any | The variable whose previous value should be stored |
Gif
