apphouse/dist/utils/obj/getMappedKeys.ts

Component library for React that uses observable state management and theme-able components.

export function getMappedKeys(obj: object, prefix = ''): string[] {
  let keys: string[] = [];

  for (const key in obj) {
    // eslint-disable-next-line no-prototype-builtins
    if (obj.hasOwnProperty(key)) {
      const value = obj[key];

      if (typeof value === 'object' && value !== null) {
        const nestedKeys = getMappedKeys(value, `${prefix}${key}.`);
        keys = keys.concat(nestedKeys);
      } else {
        keys.push(`${prefix}${key}`);
      }
    }
  }

  return keys;
}