Unable to get blank properties and it's id from array of object

i want to get empty properties(only need to check role,group and subgroup) and it’s id both in array of objects.

let tempdata = [
        {
            "id": 41,
            "tool": "Artifactory",
            "role": "",
            "group": "Dish",
            "subgroup": "Ehub test 009",
            "subscriptionId": "artifactory-ehub-test-009"
        },
        {
            "id": 4,
            "tool": "Gitlab",
            "role": "Owner",
            "group": "IDP",
            "subgroup": "IDP-Service-Templates",
            "subscriptionId": "gitlab-51663585"
        }
    ]

What i tried so far is this:

tempdata.filter(item=>item.group=='' || item.subgroup=='' || item.role=='').map(item=>item.id)

but this only gives my id [41] what i want is [{"id":41,"blank_properties":["role"]}]
Can somebody please help.

>Solution :

you can simply do it this way

tempdata.map((item)=>{
    let d = [];
     if(item.role === ''){
    d.push('role')
     }
    if(item.group ===''){
        d.push('group')
    }
    if(item.subgroup===''){
        d.push('subgroup')
    }
    return {...item,'blank_prop':d}
})