[英]vue component built in v-for, use data from another related object as prop
[英]Use data from axios get as prop for another Vue file
我有一些代码可以将计算机的 ip 地址解析为经纬度,就像这样
ip_resolve.vue
<script>
const axios = require('axios').default;
const ipRegex = /ip=(\d{1,3}.\d{1,3}.\d{1,3}.\d{1,3})$/gmi
export default {
name: 'ip',
props: {
ip: String,
lat: String,
long: String
},
mounted () {
axios.get('https://www.cloudflare.com/cdn-cgi/trace')
.then(response => (
this.ip = ipRegex.exec(response.data)[1]
)
.then(
axios.get('https://cors-anywhere.herokuapp.com/http://api.ipstack.com/'+this.ip+'?access_key=<key>')
.then( response => (
this.lat = response.data.latitude,
this.long = response.data.longitude
)
)
)
)
}
}
</script>
我想将纬度/经度“返回”到 App.Vue,它会将纬度/经度作为道具传递给“Weather.js”
应用程序
<template>
<div id="app">
<img alt="Vue logo" src="./assets/logo.png">
<ip></ip>
<Weather lat={{lat}} long={{long}} />
</div>
</template>
<script>
import Weather from './components/Weather.vue'
import ip from './components/ip_resolve.vue'
export default {
name: 'App',
components: {
Weather,
ip
}
}
</script>
我已经阅读了一些关于 $emit 的内容,但我不熟悉设计范式,也不知道如何实现它。 有人可以在这里为我提供一些最佳实践吗?
谢谢,
在您的ip_resolve.vue
使用它在从 axios 获取数据后发出事件:
this.$emit('response', {
lat: response.data.latitude,
long: response.data.longitude
}
然后在你的App.vue
:
<ip @response="onResponse"></ip>
<Weather :lat="lat" :long="long" />
在App.vue
<script>
中:
export default {
name: 'App',
data() {
return {
lat: 0,
long: 0
}
},
components: {
Weather,
ip
},
methods: {
onResponse($event) {
this.lat = $event.lat
this.long = $event.long
}
}
}
你快到了。
这是您如何在 ip 组件上发出数据:
<script>
const axios = require('axios').default;
const ipRegex = /ip=(\d{1,3}.\d{1,3}.\d{1,3}.\d{1,3})$/gmi
export default {
name: 'ip',
props : {
ip: String
},
mounted () {
axios.get('https://www.cloudflare.com/cdn-cgi/trace')
.then(function(response) {
this.ip = ipRegex.exec(response.data)[1]
return axios.get('https://cors-anywhere.herokuapp.com/http://api.ipstack.com/'+this.ip+'?access_key=<key>')
})
.then(function(response) {
this.$emit('change', {
lat : response.data.latitude,
long : response.data.longitude
})
})
}
}
</script>
然后您如何接收并将其推送到您的天气组件:
<template>
<div id="app">
<img alt="Vue logo" src="./assets/logo.png">
<ip @update="updateCoords"></ip>
<weather :lat="lat" :long="long" />
</div>
</template>
<script>
import Weather from './components/Weather.vue'
import ip from './components/ip_resolve.vue'
export default {
name: 'App',
components: {
Weather,
ip
},
data : () => ({
lat : null,
long : null,
}),
methods : {
updateCoords (coords) {
this.lat = coords.lat
this.long = coords.long
}
}
}
</script>
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.