Undefined For loop – ReactJS/JS [duplicate]

I have no clue why “0 1” is undefined, they should have a value

let members = [];
                                                console.log(employees.length);
                                                console.log(objRef.contributors.length);
                                                for(let i=0; i<objRef.contributors.length; i++)
                                                {
                                                    for(let j=0; j<employees.length; i++)
                                                    {
                                                        console.log(j,i,employees[i]);
                                                        if(objRef.contributors[i] == employees[i].uid){
                                                            members.push(employees[i].Fname);
                                                        }
                                                    }
                                                }
                                                console.log(members);