const result = await locationModel.aggregate(
[
{$match : {uid : Number(uid), nid: {$regex:listing_id}}},
{$sort : {[order_by]:order=='desc'?-1:1}},
{$skip : skip},
{$limit : pagelimit}
])
Here I have used regex method for partial search, but regex method only filter the string, but I need to filter out integer value. Please help me to do this.