Silly question about filtering

hi all,
as a newbie at lime and mongo db i need a simple answer about filtering.
i can filter records by field name like this at post request.

 filter: {
     name: { $regex: this.search.toLowerCase() },
     email: { $regex: this.search.toLowerCase() }
         }

But what if i need to search keyword at all fields ?
tnx for help.

i figure it out. putting here for people who may need (as post parameters)

filter: {
$or: [
{ name: { $regex: this.search.toLowerCase() } },
{ email: { $regex: this.search.toLowerCase() } },
{ country: { $regex: this.search.toLowerCase() } },
{ phone_1: { $regex: this.search.toLowerCase() } }
]
}