判断当前树节点深度
getTreeDeep(treeData) {
let arr = [];
arr.push(treeData);
let depth = 0;
while (arr.length > 0) {
let temp = [];
for (let i = 0; i < arr.length; i++) {
temp.push(arr[i]);
}
arr = [];
for (let i = 0; i < temp.length; i++) {
if (temp[i].children && temp[i].children.length > 0) {
for (let j = 0; j < temp[i].children.length; j++) {
arr.push(temp[i].children[j]);
}
}
}
if (arr.length >= 0) {
depth++;
}
}
return depth;
},
过滤当前节点
filterCurNode(data,id){
let result ;
if(id) result = data.filter(item => item.id !== id);
else result = data;
return result;
},
标题
let level = 5;//树限制的层级数
setTreeNode(data, currentLevel, limitLevel, id) {
const vm = this;
currentLevel = currentLevel + 1;
return vm.filterCurNode(data,id).map(item => {
item.children = item.children && item.children.length && currentLevel < level -limitLevel ? vm.setTreeNode(item.children, currentLevel, limitLevel,id) : [];
return item
});
},
用法
this.setTreeNode(this.treeInfo, 0 , this.getTreeDeep(info),info.id)
其中 this.treeInfo 整棵树的数据;info 为当前选中树节点数据