el-tree 获取选中节点的路径名称

 document.querySelectorAll('.el-checkbox.is-checked').forEach(ele => {
    let id = $(ele).parents('.el-tree-node')[0].dataset.key
    let parents = $(ele).parents('.el-tree-node__children')
    let path = ele.parentNode.innerText
    parents.each(i => {
        path = $(parents[i]).prev().text() + ' => '+path
    })
    console.log(path)
});

不依赖jQuery

 document.querySelectorAll('.el-checkbox.is-checked').forEach(ele => {
    let nodeChild = ele
    while(nodeChild.parentElement.className.indexOf('el-tree-node ') === -1){
        nodeChild = nodeChild.parentElement
    }
    let id = nodeChild.parentElement.dataset.key
    let parents = []
    while(!!ele.parentElement){
        if(ele.parentElement.className.indexOf('el-tree-node ') > -1){
            parents.push(ele.parentElement.querySelector('.el-tree-node__label').innerText)
        }
        ele = ele.parentElement
    }
    console.log(parents)
    console.log(id)
});