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