所以我的代码工作得很好我的数组语法正确一切都很好
但我发现自己在(in <Chart data = ) 中手动对数据进行硬编码JSX
问题
现在我有 20 个元素,我将不得不手动对其进行硬编码,这不是很有效.. 有没有更好的方法来做到这一点?
import React from 'react'
import Chart from "react-google-charts"
import {useSelector} from 'react-redux'
const Graph = () => {
const products = useSelector(state => state.products)
const colors = ['#51e2f5','#9df9ef','#edf756','#ffa8B6','#a28089','#a0d2eb','#e5eaf5','#d0bdf4','#8458B3','#a28089']
for(var i=0;i<10;i++) {
products[i].color = colors[i]
}
for(i =10;i<20;i++) {
products[i].color = colors[i-10]
}
const arr = products.map((prod) => {
return [prod.productName,parseInt(prod.price),prod.color,null]
})
return (
<Chart
{...console.log(arr[0])}
width={'500px'}
height={'300px'}
chartType="BarChart"
loader={<div>Loading Chart</div>}
data={[
[
'Element',
'Density',
{ role: 'style' },
{
sourceColumn: 0,
role: 'annotation',
type: 'string',
calc: 'stringify',
},
],
// ['Copper', 8.94, '#b87333', null],
// ['Silver', 10.49, 'silver', null], // this is the data format expected
// ['Gold', 19.3, 'gold', null],
// ['Platinum', 21.45, 'color: #e5e4e2', null],
[arr[0][0],arr[0][1],arr[0][2],arr[0][3]],
[arr[1][0],arr[1][1],arr[1][2],arr[1][3]], // i want to do this 20 times i.e first index goes till 20 (now going till 3)
[arr[2][0],arr[2][1],arr[2][2],arr[2][3]],
[arr[3][0],arr[3][1],arr[3][2],arr[3][3]],
]}
options={{
title: 'Density of Precious Metals, in g/cm^3',
width: 600,
height: 400,
bar: { groupWidth: '95%' },
legend: { position: 'none' },
}}
// For tests
rootProps={{ 'data-testid': '6' }}
/>
)
}
export default Graph