介绍
vTable是字节开发的一款能用来渲染表格的库,是用canvas渲染,避免了传统用dom组件表格的一些问题,能很快的渲染出上万格子的表格。
接下来我将使用vTable构建类似下面的多维表格,其中quantity、sales等是指标。
使用
官网地址:Getting_Started------VisActor/VTable tutorial documents
1、首先下载npm,或者cdn引入vtable,并且准备一个div作为容器。vTable有ListTable(普通表格)和PivotTable(透视表)的区别,我们现在用PivotTable来构建表格。
html
<script src="https://unpkg.com/@visactor/vtable/dist/vtable.min.js"></script>
<div id="tableContainer" style="width: 100vw;height:100vh;"></div>
<script>
// 创建 VTable 实例
const tableInstance = new VTable.PivotTable(document.getElementById('tableContainer'), option);
</script>
2、准备表格数据
html
[
{
"city": "重庆",
"exist": 1,
"sold": 2,
"column1": "家具"
},
{
"city": "武汉",
"column1": "家具",
"exist": 7,
"sold": 8
},
{
"city": "重庆",
"column1": "家具",
"exist": 2,
"sold": 3
},
{
"city": "武汉",
"column1": "家具",
"exist": 8,
"sold": 9
},
{
"city": "重庆",
"column1": "体育器材",
"exist": 4,
"sold": 5
},
{
"city": "武汉",
"column1": "体育器材",
"exist": 10,
"sold": 11
},
{
"city": "重庆",
"column1": "体育器材",
"exist": 6,
"sold": 7
},
{
"city": "武汉",
"column1": "体育器材",
"exist": 11,
"sold": 12
}
]
3、构建option。
row和column用来指定行和列,
indicators用来指定指标,
dataConfig用来设置合计、平均值等一些计算,
hideIndicatorName用来设置是否隐藏指标
更多配置请看官网
javascript
const records = content
const option = {
records,
rows: [
{
dimensionKey: 'city',
title: '城市',
}
],
columns: [{
dimensionKey: 'column1',
title: '类别',
}
],
indicators: [{
indicatorKey: 'exist',
title: '现存'
},
{
indicatorKey: 'sold',
title: '已售',
}
],
// 设置左上角
corner: {
titleOnDimension: 'all',//row column all
},
// hideIndicatorName: true,//隐藏指标名
// 设置合计
dataConfig: {
totals: {
row: {
showGrandTotals: true,
subTotalsDimensions: ['exist'],
grandTotalLabel: '合计',
},
}
},
widthMode: 'standard'
};
完整代码
html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<!-- <script src="https://unpkg.com/@visactor/vtable/dist/vtable.min.js"></script> -->
<script src="./vtable.min.js"></script>
<style>
* {
margin: 0;
padding: 0;
}
</style>
</head>
<body>
<div id="tableContainer" style="width: 99vw;height:99vh;"></div>
<script>
fetch('./data4.txt').then(res => res.json()).then(res => {
console.log(res);
let content = res
const records = content
const option = {
records,
rows: [
{
dimensionKey: 'city',
title: '城市',
}
],
columns: [{
dimensionKey: 'column1',
title: '类别',
}
],
indicators: [{
indicatorKey: 'exist',
title: '现存'
},
{
indicatorKey: 'sold',
title: '已售',
}
],
// 设置左上角
corner: {
titleOnDimension: 'all',//row column all
},
// hideIndicatorName: true,//隐藏指标名
// 设置合计
dataConfig: {
totals: {
row: {
showGrandTotals: true,
subTotalsDimensions: ['exist'],
grandTotalLabel: '合计',
},
}
},
widthMode: 'standard'
};
// 创建 VTable 实例
const tableInstance = new VTable.PivotTable(document.getElementById('tableContainer'), option);
})
</script>
</body>
</html>
效果
现存和已售是指标。
最后附上效果: