listFilter = () => {
    let newList = [];
    let search = this.state.search;
    let list = this.state.filteredStudents;
    if (this.state.search !== "") {
        for (let i = 0; i > list.length; i++) {
            let checkFirst = list[i].firstName.includes(search);
            let checkLast = list[i].lastName.includes(search);
            if (checkFirst === true || checkLast === true) {
                console.log("this is list i : " + list[i]);
            }
        }
        this.setState({ filteredStudents: newList });
    } else {
        let resetStudents = this.state.students;
        this.setState({ filteredStudents: resetStudents });
    }
}