@blockstack/ui/dist/hooks/use-merge-refs.esm.js

Blockstack UI components built using React and styled-components with styled-system.

import { useMemo } from 'react';

function assignRef(ref, value) {
  if (ref == null) return;

  if (typeof ref === 'function') {
    ref(value);
  } else {
    try {
      ref.current = value;
    } catch (error) {
      throw new Error("Cannot assign value \"" + value + "\" to ref \"" + ref + "\"");
    }
  }
}
function useMergeRefs() {
  for (var _len = arguments.length, refs = new Array(_len), _key = 0; _key < _len; _key++) {
    refs[_key] = arguments[_key];
  }

  return useMemo(function () {
    if (refs.every(function (ref) {
      return ref == null;
    })) {
      return null;
    }

    return function (node) {
      refs.forEach(function (ref) {
        if (ref) assignRef(ref, node);
      });
    };
  }, refs);
}

export { assignRef, useMergeRefs };
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