_validateVueInstance () {
    let valid = true
    if (!this._userData.vue) {
      this._userData.valid = false
      valid = false
    }
    if (this._userData.vue && (!this._userData.vue.hasOwnProperty('extend') ||
        !this._userData.vue.hasOwnProperty('observable'))) {
      this._userData.valid = false
      valid = false
    }
    return valid
  }
/**
   * Perform necessary checks for valid user-provided Vue instance.
   *
   * @return {void}
   */
Perform necessary checks for valid user-provided Vue instance.
@return {void}
Perform necessary checks for valid user - provided Vue instance . @return { void }
_validateVueInstance () {
    let valid = true
    if (!this._userData.vue) {
      this._userData.valid = false
      valid = false
    }
    if (this._userData.vue && (!this._userData.vue.hasOwnProperty('extend') ||
        !this._userData.vue.hasOwnProperty('observable'))) {
      this._userData.valid = false
      valid = false
    }
    return valid
  }
_validateVueInstance ( ) { let valid = true if ( ! this . _userData . vue ) { this . _userData . valid = false valid = false } if ( this . _userData . vue && ( ! this . _userData . vue . hasOwnProperty ( 'extend' ) || ! this . _userData . vue . hasOwnProperty ( 'observable' ) ) ) { this . _userData . valid = false valid = false } return valid }
Perform necessary checks for valid user-provided Vue instance.
Perform necessary checks for valid user - provided Vue instance .