vuejs 2 nextTick() 返回 [英] vuejs 2 nextTick() return

问题描述

我正在尝试在 vuejs 2 中使用 nextTick() 返回一些数据，如下所示

I'm trying to return some data using nextTick() in vuejs 2 as following

getProperty() {
   this.$nextTick(function() {
      return 'hello';
   });
}

它不起作用.有什么线索吗?

It doesn't work. Any clue?

推荐答案

this.$nextTick 这个函数不返回任何东西；它只是在刷新所有新数据后执行您的回调.

this.$nextTick this function does not return anything; it just executes your callback after refreshing all new data.

所以如果你想设置一些标志或数据，你可以使用模态/变量.

so if you want to set some flag or data you can use modal/variable for that.

new Vue({
  data: {
    msg: 'hello'
  },
  methods: {
    someTask: function () {
      this.msg = 'hello next tick';
      this.$nextTick(function() {
        this.printVar();
      });
    },
    printVar: function() {
      // here this variable will be changed to latest value
      // or call another function where this value is used
      // this.anotherFunction();
      console.log(this.msg);
    }
  },   
  ready: function () {
    this.someTask();
  }   
});

或者只是告诉我们您想用它做什么，以便我们为您提供更好的答案.

or just let us know what you want to do with that so we can provide you better answer.

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