@discoveryjs/discovery/lib/core/utils/compare.js

Frontend framework for rapid data (JSON) analysis, shareable serverless reports and dashboards

import { hasOwn } from "./object-utils.js";
export const deepEqual = (a, b) => equal(a, b, deepEqual);
export function equal(a, b, compare = Object.is) {
  if (Object.is(a, b)) {
    return true;
  }
  if (typeof a !== "object" || a === null || typeof b !== "object" || b === null) {
    return false;
  }
  for (const key in a) {
    if (hasOwn(a, key)) {
      if (!hasOwn(b, key) || !compare(a[key], b[key])) {
        return false;
      }
    }
  }
  for (const key in b) {
    if (hasOwn(b, key)) {
      if (!hasOwn(a, key)) {
        return false;
      }
    }
  }
  return true;
}