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c520797fd5
* improve docs: useMap demo link * improve docs: useMap demo link (remove callback usage added) * Add remove action to useMap story
31 lines
584 B
Markdown
31 lines
584 B
Markdown
# `useMap`
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React state hook that tracks a value of an object.
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## Usage
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```jsx
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import {useMap} from 'react-use';
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const Demo = () => {
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const [map, {set, remove, reset}] = useMap({
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hello: 'there',
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});
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return (
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<div>
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<button onClick={() => set(String(Date.now()), new Date().toJSON())}>
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Add
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</button>
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<button onClick={() => reset()}>
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Reset
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</button>
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<button onClick={() => remove('hello')} disabled={!map.hello}>
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Remove 'hello'
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</button>
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<pre>{JSON.stringify(map, null, 2)}</pre>
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</div>
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);
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};
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```
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