fixed-react-data-grid-custom/src/ColumnComparer.js

Excel-like grid component built with React, with editors, keyboard navigation, copy & paste, and the like

const isValidElement = require('react').isValidElement;

module.exports = function sameColumn(a, b) {
  let k;

  for (k in a) {
    if (a.hasOwnProperty(k)) {
      if ((typeof a[k] === 'function' && typeof b[k] === 'function') || (isValidElement(a[k]) && isValidElement(b[k]))) {
        continue;
      }
      if (!b.hasOwnProperty(k) || a[k] !== b[k]) {
        return false;
      }
    }
  }

  for (k in b) {
    if (b.hasOwnProperty(k) && !a.hasOwnProperty(k)) {
      return false;
    }
  }

  return true;
};