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add tree's tips

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warmhug 2016-07-25 12:08:43 +08:00 committed by GitHub
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components/tree/index.en-US.md
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@ -47,3 +47,11 @@ Directory, organization, biological classification, country, and etc. Almost thi
|title | title | String/element | '---' |
|key | it's used with (default)ExpandedKeys / (default)CheckedKeys / (default)SelectedKeys. P.S.: it must be unique in all of treeNodes of the tree! | String | internal calculated position of treeNode |
|isLeaf | whether it's leaf node | bool | false |
## note
The number of treeNodes can be very large, but when enable `checkable`,
it will spend more computing time, so we cached some calculations(e.g. `this.treeNodesStates`),
to avoid double computing. But, this bring some restrictions,
**when you async load treeNodes, you should render tree like this**
`{this.state.treeData.length ? <Tree ...>{this.state.treeData.map(t => <TreeNode ... />)}</Tree> : 'loading tree'}`