数组数据转化树形结构数据

function translateDataToTree(data) {

​ let parents = data.filter(value => value.parentId == 'undefined' || value.parentId == null)

​ let children = data.filter(value => value.parentId !== 'undefined' && value.parentId != null)

​ let translator = (parents, children) => {

​ parents.forEach((parent) => {

​ children.forEach((current, index) => {

​ if (current.parentId === parent.id) {

​ let temp = JSON.parse(JSON.stringify(children))

​ temp.splice(index, 1)

​ translator([current], temp)

​ typeof parent.children !== 'undefined' ? parent.children.push(current) : parent.children = [current]

​ }

​ })

​ } )

​ }

​ translator(parents, children)

​ return parents

​ }