fajiaopaopao opened a new pull request #13997:
URL: https://github.com/apache/incubator-echarts/pull/13997
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## Brief Information
This pull request is in the type of:
- [x] bug fixing
- [ ] new feature
- [ ] others
### What does this PR do?
fix `TooltipView.ts` bug
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### Fixed issues
- #13996
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- #xxxx: ...
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## Details
### Before: What was the problem?
when the mouse moves to show the tooltip will throw an error, because in the
file `src/component/tooltip/TooltipView.ts`, Line 432 `else if` statement
always `true`, although`el` value is undefined.
```javascript
else if (el && findEventDispatcher(el, (target) =>
getECData(target).dataIndex != null), true) {
```
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### After: How is it fixed in this PR?
give the correct parameters.
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## Usage
### Are there any API changes?
- [ ] The API has been changed.
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### Related test cases or examples to use the new APIs
[test/toolbox-tooltip](https://github.com/fajiaopaopao/incubator-echarts/blob/master/test/toolbox-tooltip.html)
## Others
### Merging options
- [x] Please squash the commits into a single one when merge.
### Other information
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