
[英]How does this code snippet run the final function after both ajax requests have completed?
[英]Run a vuejs code after all axios requests are completed
在这里,仅在所有axios请求完成后才需要运行carResult函数。 将其添加到method2成功中将不起作用,因为组件两次运行了该代码。 如果有人可以在所有axios请求之后都可以使用vue代码帮助我,那将是非常有帮助的。
<html>
<head>
<title>title</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
</style>
</head>
<body>
<div id="el">
<div>
<p>Selected: {{ input.selected }}</p>
<select2 :options="options" v-model="input.selected">
<option disabled value="0">Select one</option>
</select2>
</div>
<div>
<p>Selected: {{ input.selected2 }}</p>
<select2 :options="options2" v-model="input.selected2">
<option disabled value="0">Select one</option>
</select2>
</div>
</div>
<script type="text/x-template" id="select2-template">
<select>
<slot></slot>
</select>
</script>
<script src="http://themestarz.net/html/craigs/assets/js/jquery-3.3.1.min.js"></script>
<script src="https://unpkg.com/vue@2.5.17/dist/vue.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.0/js/select2.min.js"></script>
<script src="https://unpkg.com/axios/dist/axios.min.js"></script>
<script>
Vue.component('select2', {
props: ['options', 'value'],
template: '#select2-template',
mounted: function () {
var vm = this;
$(this.$el)
// init select2
.select2({data: this.options})
.val(this.value)
.trigger('change')
// emit event on change.
.on('change', function () {
vm.$emit('input', this.value)
})
},
watch: {
options: function (options) {
// update options
$(this.$el).empty().select2({data: options})
},
value: function (value) {
// update value
$(this.$el)
.val(value)
.trigger('change')
}
},
destroyed: function () {
$(this.$el).off().select2('destroy')
}
});
var vm = new Vue({
el: '#el',
data: {
input: {
selected2: "all",
selected: "all"
},
options: [],
options2: [],
items: []
},
created: function () {
this.mymethod();
},
watch: {
input: {
handler(newInput) {
this.carResult();
},
deep: true
},
itemsArray() {
this.setPages();
}
},
methods: {
mymethod: function () {
var vm = this;
axios.get('https://api.coindesk.com/v1/bpi/currentprice.json')
.then(function (response) {
vm.options = [
{id: 0, text: 'All'},
{id: 1, text: 'Hello'},
{id: 2, text: 'World'},
{id: 3, text: 'Bye'}
];
vm.input.selected = 2;
vm.method2();
})
.catch(function (error) {
console.log(error);
});
},
method2: function () {
var vm = this;
axios.get('https://api.coindesk.com/v1/bpi/currentprice.json')
.then(function (response) {
vm.options2 = [
{id: 0, text: 'All'},
{id: 1, text: 'This'},
{id: 2, text: 'is'},
{id: 3, text: 'second'}
];
vm.input.selected2 = 2;
})
.catch(function (error) {
console.log(error);
});
},
carResult: function () {
var vm = this;
axios.get('https://api.coindesk.com/v1/bpi/currentprice.json')
.then(function (response) {
vm.items = response.data;
})
.catch(function (error) {
console.log(error);
});
}
}
});
</script>
</body>
</html>
将您所有的axios调用传递给Promise.all()
,在所有axios调用完成后,它将解决。
Promise.all([axios.get(url1), axios.get(url2), axios.get(url3)])
.then((allResults) => {
console.log("All axios calls have been made!")
})
Promise.all()
需要一个promise数组作为其参数, axios.get()
方法返回一个promise。
从Promise.all()
返回的所有值将按照传递的Promises顺序进行,而不考虑完成顺序。
更多信息: https : //developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Global_Objects/Promise/all
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