perf: improve creating & removing performace #1089
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yuanyan
reviewed
Jun 12, 2019
yuanyan
reviewed
Jun 12, 2019
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渲染性能：当前容器没有子元素时，直接 mountChildren ，跳过原有的比对
删除节点的性能：当父节点被 removeChild 后，子元素不再重复执行 removeChild