Complex data type de duplication

let arr = [
            {
    
                name: " Zhang San ",
                xxx: "xxx"
            },
            {
    
                name: " Zhang 4",
                xxx: "xxx"
            },
            {
    
                name: " Zhang 51",
                xxx: "xxx"
            },
            {
    
                name: " Zhang San ",
                xxx: "xxx"
            },
            {
    
                name: " Zhang 4",
                xxx: "xxx"
            },
            {
    
                name: " Zhang 5",
                xxx: "xxx"
            },
            {
    
                name: " Zhang 51",
                xxx: "xxx"
            },
            {
    
                name: " Zhang 6",
                xxx: "xxx"
            },
            {
    
                name: " Zhang 5",
                xxx: "xxx"
            },
        ]

        //  Complex data type de duplication 
        function quc(arr) {
    
            let o = [];
            for (let i = 0; i < arr.length; i++) {
    
                const eleI = arr[i];
                //  Subscript of matching condition   No match   Namely  -1  If it matches, it's not  -1
                let oi = o.findIndex((ite) => {
    
                    return ite.name == eleI.name;
                });
                if (oi == -1) {
    
                    o.push(eleI);
                }
            }
            return o;
        }
        console.log(quc(arr));