[GitHub] [echarts] lz1998 commented on pull request #14352: fix: import theme error

[GitBox <gi...@apache.org>]

lz1998 commented on pull request #14352:
URL: https://github.com/apache/echarts/pull/14352#issuecomment-786371835


   This is my code. Line `require("echarts/theme/vintage")` report this error
   
   ```javascript
   import {createCanvas} from 'canvas'
   import * as echarts from 'echarts'
   import Express from 'express'
   import {Request, Response} from 'express'
   
   // 导入主题
   require("echarts/theme/vintage")
   
   
   // 生成图片
   function generateImage(options: any, width: number, height: number, theme: string) {
     console.log("GENERATE IMAGE")
     console.log(`WIDTH: ${width}`)
     console.log(`HEIGHT: ${height}`)
     console.log(`THEME: ${theme}`)
     console.log(`OPTIONS: ${JSON.stringify(options)}`)
     const canvas = createCanvas(width, height) as any
     const ctx = canvas.getContext('2d')
     ctx.font = '12px'
     echarts.setCanvasCreator(() => canvas)
     const chart = echarts.init(canvas, theme)
     options.animation = false
     chart.setOption(options)
     return (chart.getDom() as any).toBuffer()
   }
   
   const express = require('express')
   const app = Express()
   app.use(express.json())
   const imgController = (req: Request, res: Response) => {
     console.log("RECV REQ")
     let options = req.query.options || req.body
     if (typeof options === 'string') {
       options = JSON.parse(options)
     }
     let width = parseInt(req.query.width || options.width || 1024)
     let height = parseInt(req.query.height || options.height || 768)
     let theme = req.query.theme || options.theme || 'dark'
     res.header("Content-Type", "image/png")
     res.send(generateImage(options, width, height, theme))
   }
   app.post('/', imgController)
   app.get('/', imgController)
   
   const PORT = process.env.PORT || 3000
   app.listen(PORT)
   console.log("echarts started port:" + PORT)
   
   ```
   
   Error
   ```bash
   /Users/lz1998/WebstormProjects/ssr-echarts/node_modules/echarts/lib/echarts.js:44
   export * from './export/core';
   ^^^^^^
   
   SyntaxError: Unexpected token 'export'
       at wrapSafe (internal/modules/cjs/loader.js:1054:16)
       at Module._compile (internal/modules/cjs/loader.js:1102:27)
       at Module._extensions..js (internal/modules/cjs/loader.js:1158:10)
       at Object.require.extensions.<computed> [as .js] (/Users/lz1998/WebstormProjects/ssr-echarts/node_modules/ts-node/src/index.ts:1045:43)
       at Module.load (internal/modules/cjs/loader.js:986:32)
       at Function.Module._load (internal/modules/cjs/loader.js:879:14)
       at Module.require (internal/modules/cjs/loader.js:1026:19)
       at require (internal/modules/cjs/helpers.js:72:18)
       at /Users/lz1998/WebstormProjects/ssr-echarts/node_modules/echarts/theme/vintage.js:29:26
       at Object.<anonymous> (/Users/lz1998/WebstormProjects/ssr-echarts/node_modules/echarts/theme/vintage.js:34:3)
   
   ```


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