14 lines
426 B
JavaScript
14 lines
426 B
JavaScript
function Component(props) {
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const [value, setValue] = useState(null);
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// NOTE: this lambda does not capture any mutable values (only the state setter)
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// and thus should be treated as readonly
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const onChange = e => setValue(value => value + e.target.value);
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useOtherHook();
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// x should be independently memoizeable, since foo(x, onChange) cannot modify onChange
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const x = {};
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foo(x, onChange);
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return x;
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}
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