Function createComputedGetter

static/vuejs/vue.js:2808–2821

(key)

}

function createComputedGetter (key) {
  return function computedGetter () {
    var watcher = this._computedWatchers && this._computedWatchers[key];
    if (watcher) {
      if (watcher.dirty) {
        watcher.evaluate();
      }
      if (Dep.target) {
        watcher.depend();
      }
      return watcher.value
    }
  }
}

function initMethods (vm, methods) {
  var props = vm.$options.props;