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优化构建树形数据JS方法

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This commit is contained in:
fungleo 2020-08-04 14:11:02 +08:00
parent 107672419e
commit 876ecf21c7
1 changed files with 4 additions and 8 deletions
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12
ruoyi-ui/src/utils/ruoyi.js
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@ -126,23 +126,19 @@ export function praseStrEmpty(str) {
* @param {*} children 孩子节点字段 默认 'children' * @param {*} children 孩子节点字段 默认 'children'
* @param {*} rootId 根Id 默认 0 * @param {*} rootId 根Id 默认 0
*/ */
export function handleTree(data, id, parentId, children, rootId) { export function handleTree(data = [], id = 'id', parentId = 'parentId', children = 'children', rootId = 0) {
id = id || 'id'
parentId = parentId || 'parentId'
children = children || 'children'
rootId = rootId || 0
//对源数据深度克隆 //对源数据深度克隆
const cloneData = JSON.parse(JSON.stringify(data)) const cloneData = JSON.parse(JSON.stringify(data))
//循环所有项 //循环所有项
const treeData = cloneData.filter(father => { const treeData = cloneData.filter(father => {
let branchArr = cloneData.filter(child => { const branchArr = cloneData.filter(child => {
//返回每一项的子级数组 //返回每一项的子级数组
return father[id] === child[parentId] return father[id] === child[parentId]
}); });
branchArr.length > 0 ? father.children = branchArr : ''; branchArr.length && (father.children = branchArr);
//返回第一层 //返回第一层
return father[parentId] === rootId; return father[parentId] === rootId;
}); });
return treeData != '' ? treeData : data; return treeData !== '' ? treeData : data;
} }