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Default props in React
// Is there any difference? (In performance for example?)
// A: Using default values in object destructuring
const A = ({
value = "",
foo = "bar",
}) => {};
// B: Using defaultProps attribute
const B = (props) => {};
B.defaultProps = {
value: "",
foo: "bar"
// Wrong! Doesn't work, because React always provides `props` argument. If there's no props, it's empty object.
const C = (props = {value: "", foo: "bar"}) => {};
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