Remove duplicates from Array of Dictionaries

gistfile1.txt

var dict:[[String:String]] = [["name":"a"],["name":"b"],["name":"a"]]
let filteredDict = filter(dict)

func filter(_ arrayOfDicts:[[String:String]]) -> [[String:String]] {
    var filteredDict = [[String:String]]()
    var filteredName = [String]()
    
    for d in arrayOfDicts {
        if let name = d["name"], !filteredName.contains(name) {
            filteredDict.append(d)
            filteredName.append(name)
        }
    }
    return filteredDict
}