The prop is used to pass in an initial value; the child component wants to use it as a local data property afterwards. In this case, it’s best to define a local data property that uses the prop as its initial value:

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Props are custom attributes you can register on a component. When a value is passed to a prop attribute, it becomes a property on that component instance. To pass a title to our blog post component, we can include it in the list of props this component accepts, using a props option:

Sep 2, 2021 · Vue2中组件间通信系列，本篇是关于父组件向子组件传值的介绍，这里我会用通俗的语言帮助大家理解props配置项. 子组件可以接收到父组件传递的数据信息，适用于组件间通信，对于父传子props配置相相对来说是较为方便的. name:'Father', data(){ return{ . Str:'hello', . job:{ . salary:'30k' } } }, . components:{ . Son. } } </script> name:'Son', . props:['msg','Job'], mounted(){ . console.log(this.msg) . console.log(this.Job) } } . {__ob__: Observer} .

Sep 12, 2017 · The official Vue docs shows how to use v-model on a custom component: https://v2.vuejs.org/v2/guide/components.html#Using-v-model-on-Components. TL;DR: You simply need to have a specifically named value prop, and emit an input event which the v-model when you instantiate the component maps for you. More info on how this works on the link above.

May 23, 2018 · 在项目中使用vue2来构建项目，跟 vue1 很大的一处不同在于2 取消了props 的双向绑定，改成只能从父级传到子级的单向数据流，初衷当然是好的，为了避免双向绑定在项目中容易造成的数据混乱。 解决方案一、 参考网上与github上，解决方案都是这样： 1、在父组件中，用data对象中创建一个props属性的副本. 2、在子组件中，watch props属性，并赋予data副本，同步组件外对props的修改. 3、在子组件中，watch data副本，emit一个方法，通知到组件外。 最 …

Hey all, in this Vue JS 2 tutorial I'll introduce you to props - a ways to pass data from one component to another (parent to child). ...more.

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Aug 9, 2023 · vue的组件传值分为三种方式：父传子、子传父、非父子组件传值(兄弟传值) 引用官网的一句话：父子组件的关系可以总结为 prop 向下传递，事件向上传递。 父组件通过 prop 给子组件下发数据，子组件通过事件给父组件发送消息。