el-tree数据渲染超出省略

问题

	<el-tree
            :data="deptOptions"
            :props="defaultProps"
            :expand-on-click-node="false"
            :filter-node-method="filterNode"
            ref="tree"
            default-expand-all
            highlight-current
            @node-click="handleNodeClick"
          />

如题，deptOptions是一个树结构，里面结点的值都是字符串，我希望将根节点的字符串长度限制在13个字符，后面超出直接加上’…’
通过直接给el-tree设置超出省略并没有解决问题，通过排查发现el-tree-node__label文字内容太多导致超出长度不显示省略号

解决

通过样式方案解决

<div class="head-container">
     <el-tree :data="deptOptions" :props="defaultProps" :expand-on-click-node="false"
            :filter-node-method="filterNode" ref="tree" default-expand-all highlight-current
            @node-click="handleNodeClick">
          <template v-slot="{node}">
              <span :title="node.label" class="node-label">{{node.label}}</span>
          </template>
     </el-tree>
</div>

.node-label {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

通过数据处理方案解决

function formatDeptOptions(deptOptions, maxLength = 13) {
  for (let i = 0; i < deptOptions.length; i++) {
    const node = deptOptions[i];
    if (node.label.length > maxLength) {
      node.label = node.label.slice(0, maxLength) + '...';
    }
    if (node.children && node.children.length > 0) {
      formatDeptOptions(node.children, maxLength);
    }
  }
}

// 假设deptOptions已经存在并初始化完毕
formatDeptOptions(deptOptions);
console.log(deptOptions);