dosubot[bot] commented on issue #30131:
URL: https://github.com/apache/superset/issues/30131#issuecomment-2608728573
<!-- Answer -->
To refactor the code in the `Echart.tsx` component to use dynamic imports
instead of `require`, and ensure that the `import` and `registerLocale` calls
are awaited before calling `echarts.core.init`, you can follow these steps:
1. **Use Dynamic Imports**: Replace the `require` function with dynamic
`import` statements. This allows you to load modules asynchronously.
2. **Await Imports and Locale Registration**: Ensure that the `import` and
`registerLocale` calls are awaited before initializing the ECharts instance.
This ensures that all necessary modules and locale settings are loaded before
the chart is rendered.
Here's an example of how you might refactor the code:
```tsx
import React, { useEffect, useRef } from 'react';
import { useSelector } from 'react-redux';
import { init, EChartsType } from 'echarts/core';
import { ExplorePageState } from 'src/explore/types';
const Echart = () => {
const divRef = useRef<HTMLDivElement>(null);
const chartRef = useRef<EChartsType | null>(null);
const locale = useSelector((state: ExplorePageState) =>
state?.common?.locale);
useEffect(() => {
const loadLocaleAndInitChart = async () => {
if (!divRef.current) return;
let localeObj;
if (locale === 'ru') {
const { default: ruLocale } = await import('echarts/i18n/langRU');
localeObj = ruLocale;
} else {
const { default: enLocale } = await import('echarts/i18n/langEN');
localeObj = enLocale;
}
if (!chartRef.current) {
chartRef.current = init(divRef.current, undefined, { locale:
localeObj });
}
// Your existing event handlers and options setup
};
loadLocaleAndInitChart();
}, [locale]);
return <div ref={divRef} />;
};
export default Echart;
```
In this refactored code:
- The `import` statements are used to dynamically load the locale files
based on the current locale.
- The `loadLocaleAndInitChart` function is defined as an `async` function to
allow the use of `await` for the dynamic imports.
- The ECharts instance is initialized only after the necessary locale is
loaded.
This approach ensures that the chart is correctly initialized with the
appropriate locale settings.
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