Rsa97

const has = (object, key) => (key in object);
const gendiff = (file1, file2) => {
  const mergeFiles = { ...file1, ...file2 };

  const uniqueKeys = Object.keys(mergeFiles);

  const diff = uniqueKeys.map(key => {
    if (has(file1, key) && has(file2, key) && typeof file1[key] === 'object' && typeof file2[key] === 'object') {
      return { key, value: gendiff(file1[key], file2[key]), status: 'have a child' };
    } else if (has(file1, key) && has(file2, key) && file1[key] !== file2[key]) {
      return { key, value: { oldValue: file1[key], newValue: file2[key] }, status: 'changed' };
    } else if (has(file1, key) && !has(file2, key)) {
      return { key, value: file1[key], status: 'removed' };
    } else if (!has(file1, key) && has(file2, key)) {
      return { key, value: file2[key], status: 'new' };
    } else if (has(file1, key) && has(file2, key) && file1[key] === file2[key]) {
      return { key, value: file1[key], status: 'same' };
    }
  });
  
  return diff;
};