In Vue.js, data is passed to subcomponents through the params parameter, which is an object containing key-value pairs. There are two delivery methods: through routing: the params parameters are automatically obtained in the route object. Via props: Define the required parameters in the child component and use v-bind to pass the data.
Transfer of Params parameters in Vue
In Vue.js, params
parameters Used to pass data to child components. It is an object containing key-value pairs of parameters that need to be passed.
Methods to pass Params parameters
There are two ways to pass params
parameters to sub-components:
- Using routing
When using routing, the params
parameters are automatically available in the component's route
object. For example:
// 父组件 <router-link :to="{ name: 'Child', params: { id: 123 } }">...</router-link> // 子组件 export default { data() { return { id: this.$route.params.id } } }
- Use props
You can also use props
to pass params
parameters. This requires defining the required parameters in the child component and then passing them in the parent component using v-bind
. For example:
// 父组件 <Child :params="{ id: 123 }"></Child> // 子组件 export default { props: ['params'], data() { return { id: this.params.id } } }
Note:
- If you use routing to pass
params
parameters, it is recommended to usenamed routes
, to ensure that route names and parameters are clearly defined. - For simple parameter passing, it is recommended to use
props
because its syntax is more concise.
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