Ovilia commented on code in PR #17349:
URL: https://github.com/apache/echarts/pull/17349#discussion_r920833222
##########
src/chart/custom/CustomView.ts:
##########
@@ -1316,24 +1322,43 @@ function mergeChildren(
// might be better performance.
let index = 0;
for (; index < newLen; index++) {
- newChildren[index] && doCreateOrUpdateEl(
- api,
- el.childAt(index),
- dataIndex,
- newChildren[index] as CustomElementOption,
- seriesModel,
- el
- );
+ const newChild = newChildren[index];
+ const oldChild = el.childAt(index);
+ if (newChild) {
+ doCreateOrUpdateEl(
+ api,
+ oldChild,
+ dataIndex,
+ newChild as CustomElementOption,
+ seriesModel,
+ el
+ );
+ }
+ else {
+ removeChildFromGroup(el, oldChild, seriesModel);
Review Comment:
You are quite right! I didn't think of the situation. I fixed this and also
update the test cases to include with/without animation.
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