Deep Nested Objects Search

deep-search

  deepSearch(object, key, predicate) {
    if (object.hasOwnProperty(key) && predicate(key, object[key]) === true)
      return object;

    for (let i = 0; i < Object.keys(object).length; i++) {
      let value = object[Object.keys(object)[i]];
      if (typeof value === "object" && value != null) {
        let o = this.deepSearch(object[Object.keys(object)[i]], key, predicate);
        if (o != null) return o;
      }
    }
    return null;
  }