[GitHub] [echarts] echarts-bot[bot] commented on issue #17588: [Bug] symbolType.indexOf is not a function

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

echarts-bot[bot] commented on issue #17588:
URL: https://github.com/apache/echarts/issues/17588#issuecomment-1230021724

   @zhuhangfeng It seems you are not using English, I've helped translate the content automatically. To make your issue understood by more people and get helped, we'd like to suggest using English next time. 🤗
   <details><summary><b>TRANSLATED</b></summary><br>
   
   **BODY**
   
   ### Version
   
   5.1.2
   
   ### Link to Minimal Reproduction
   
   _No response_
   
   ### Steps to Reproduce
   
   {
                 type: 'lines',
                 zlevel: 2,
                 data: this.List,
                 effect: {
                   show: true,
                   period: 4, //The arrow points to the speed, the smaller the value, the faster the speed
                   trailLength: 0.02, //The larger the value of trail length[0,1], the longer and heavier the trail will be
                   symbol:function(e){
                     console.log(e)
                   },
                   symbolSize: 10, //icon size
                   color: '#fff',
                   animation: false,
                 },
                 lineStyle: {
                   type: 'solid',
                   width: 1, //The width of the trail line
                   opacity: 1, //The transparency of the trail line
                   curveness: 0.05, //The straightness of the trail line
                   color: 'red',
                 },
               }
   
   ### Current Behavior
   
    effect: {
                   show: true,
                   period: 4, //The arrow points to the speed, the smaller the value, the faster the speed
                   trailLength: 0.02, //The larger the value of trail length[0,1], the longer and heavier the trail will be
                   symbol:function(e){
                     console.log(e)
                   },
                   symbolSize: 10, //icon size
                   color: '#fff',
                   animation: false,
                 },
   
   ### Expected Behavior
   
   If symbols are needed to display different images, using the callback function will report an error "TypeError: symbolType.indexOf is not a function"
   
   ### Environment
   
   ````markdown
   - OS:window 10
   - Browser: Chrome 104.0.5112.102
   - Framework:vue@2
   ````
   
   
   ### Any additional comments?
   
   _No response_
   </details>


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