Javascript 将数据数组拆分为单独的数组
我正试图将数据连接到apexchart图表中Javascript 将数据数组拆分为单独的数组,javascript,vue.js,Javascript,Vue.js,我正试图将数据连接到apexchart图表中 <apexchart type="area" height="350" :options="chartOptions" :series="series"> </apexchart> 因此,我需要得到这样的数组 var series = []; var timeStamp = []; 并将它们插入到图表设置中 da
<apexchart
type="area"
height="350"
:options="chartOptions"
:series="series">
</apexchart>
因此,我需要得到这样的数组
var series = [];
var timeStamp = [];
并将它们插入到图表设置中
data() {
return {
dataOverview: [],
series: [] // insert series objects,
chartOptions: {
//...
// some options
//...
xaxis: {
type: "datetime",
categories: [ // insert timeStamp array
// "2020-11-01T00:00:00",
// "2020-11-02T00:00:00",
// "2020-11-03T00:00:00",
// "2020-11-04T00:00:00",
// "2020-11-05T00:00:00"
]
},
//...
// some options
//...
}
}
}
beforeMount() {
this.onGetDataOverview();
},
methods: {
onGetDataOverview() {
this.$axios
.$get(
this.$store.getters["store/getApiPath"] + "/Analyst/GetOverviewData"
)
.then(response => {
this.dataOverview = response;
const seriesOne = this.dataOverview.map(
({ successfullySyngranized }) => successfullySyngranized
);
const seriesTwo = this.dataOverview.map(
({ unsuccessfullySynchronized }) => unsuccessfullySynchronized
);
const series2 = [
{ name: "series1", data: seriesOne },
{ name: "series2", data: seriesTwo }
];
this.series = series2;
//Here I am trying to insert time data, however the graph does not start
let xaxis = {
...this.chartOptions.xaxis,
categories: this.dataOverview.map(({ timeStamp }) => timeStamp)
};
this.chartOptions = { ...this.chartOptions, ...{ xaxis: xaxis } };
})
当插入时间数据时-不构建图形,但是如果我在变量声明中明确指出时间-则构建图形
但我还需要进行跟踪,以便在收到新数据时图形移动,即使用computed这非常简单,您只需使用
.map
var series1 = dataOverview.map(x => x.series1);
var series2 = dataOverview.map(x => x.series2);
var categories = dataOverview.map(x => x.timestamp);
使用数组的方法
const dataOverview=[{
id:1,
系列1:31,
系列2:11,
时间戳:“2018-09-19T00:00:00.000Z”
},
{
id:2,
系列1:40,
系列2:32,
时间戳:“2018-09-19T03:30:00.000Z”
},
{
id:3,
系列1:28,
系列2:45,
时间戳:“2018-09-19T06:30:00.000Z”
},
{
id:4,
系列1:51,
系列2:32,
时间戳:“2018-09-19T09:30:00.000Z”
},
{
id:5,
系列1:42,
系列2:34,
时间戳:“2018-09-19T11:30:00.000Z”
}
];
var series1=dataOverview.map(({series1})=>series1);
var series2=dataOverview.map(({series2})=>series2);
var timeStamp=dataOverview.map(({timeStamp})=>timeStamp);
日志(序列1、序列2、时间戳)代码>在数组中迭代一次并收集数据。O(n)
const dataOverview=[{
id:1,
系列1:31,
系列2:11,
时间戳:“2018-09-19T00:00:00.000Z”
},
{
id:2,
系列1:40,
系列2:32,
时间戳:“2018-09-19T03:30:00.000Z”
},
{
id:3,
系列1:28,
系列2:45,
时间戳:“2018-09-19T06:30:00.000Z”
},
{
id:4,
系列1:51,
系列2:32,
时间戳:“2018-09-19T09:30:00.000Z”
},
{
id:5,
系列1:42,
系列2:34,
时间戳:“2018-09-19T11:30:00.000Z”
}
];
const collect=(数据)=>{
常量系列1=[]
常量系列2=[]
常量时间戳=[]
data.forEach(项=>{
系列1.推送(项目系列1)
系列2.推送(项目系列2)
timestamp.push(item.timestamp)
})
返回{series1,series2,timestamp}
}
console.log(collect(dataOverview))代码>使用地图:
const seriesOne = dataOverview.map(el => el.series1);
const seriesTwo = dataOverview.map(el => el.series2);
const series = [
{ name: 'series1', data: seriesOne},
{name: 'series2', data: seriesTwo}
]
console.log(series);
假设dataOverview
定义为如下数据属性:
data(){
return {
dataOverview:[...]
}
}
系列
和图表选项
应定义为计算属性,如下所示:
computed:{
series(){
let _series=[
{
name:'series1',
data: this.dataOverview.map(item=>item.series1)
},
{
name:'series2',
data: this.dataOverview.map(item=>item.series2)
}
]
return _series;
},
chartOptions(){
return {
//...
// some options
//...
xaxis: {
type: "datetime",
categories: this.dataOverview.map(item=>item.timestamp)
},
//...
// some options
//...
}
}
}
编辑
您在以下方面存在反应性问题:
this.chartOptions.xaxis.categories = this.dataOverview.map(
({ timeStamp }) => timeStamp
);
应该是:
let xaxis = { ...this.chartOptions.xaxis, categories: this.dataOverview.map(
({ timeStamp }) => timeStamp
) }
this.chartOptions = { ...this.chartOptions, ...{ xaxis: xaxis } }
this.chartOptions.xaxis.categories = this.dataOverview.map(
({ timeStamp }) => timeStamp
);
let xaxis = { ...this.chartOptions.xaxis, categories: this.dataOverview.map(
({ timeStamp }) => timeStamp
) }
this.chartOptions = { ...this.chartOptions, ...{ xaxis: xaxis } }