@react-navigation/core/lib/module/StaticContainer.js

Core utilities for building navigators

"use strict";

import * as React from 'react';

/**
 * Component which prevents updates for children if no props changed
 */
export const StaticContainer = /*#__PURE__*/React.memo(function StaticContainer(props) {
  return props.children;
}, (prevProps, nextProps) => {
  const prevPropKeys = Object.keys(prevProps);
  const nextPropKeys = Object.keys(nextProps);
  if (prevPropKeys.length !== nextPropKeys.length) {
    return false;
  }
  for (const key of prevPropKeys) {
    if (key === 'children') {
      continue;
    }
    if (prevProps[key] !== nextProps[key]) {
      return false;
    }
  }
  return true;
});
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