24 lines
549 B
JavaScript
24 lines
549 B
JavaScript
/**
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* creates a Ref object with on change callback
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* @param callback
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* @returns {RefObject}
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*
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* @see {@link useCallbackRef}
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* @see https://reactjs.org/docs/refs-and-the-dom.html#creating-refs
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*/
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export function createCallbackRef(callback) {
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var current = null;
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return {
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get current() {
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return current;
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},
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set current(value) {
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var last = current;
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if (last !== value) {
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current = value;
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callback(value, last);
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}
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},
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};
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}
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