Tree: fix insertChild (#21194)

This commit is contained in:
好多大米
2021-08-02 11:16:35 +08:00
committed by GitHub
parent 4943867337
commit 4d7d24b200

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@@ -220,7 +220,7 @@ export default class Node {
if (!(child instanceof Node)) {
if (!batch) {
const children = this.getChildren(true);
const children = this.getChildren(true) || [];
if (children.indexOf(child.data) === -1) {
if (typeof index === 'undefined' || index < 0) {
children.push(child.data);