bash alias that allows to pass files or dirs to the unix cd comand

cd_into_everything.sh

# pass files or dirs to cd
cd_ () {
    if [[ -d ${1} ]]; then
        #echo ${1} is a directory"
        cd ${1}
    elif [[ -f ${1} ]]; then
        #echo ${1} is a file"
        cd $(dirname "${1}")
    else
        #echo ${1} is not valid"
        exit 1
    fi
}

# set new cd function as cd alias
alias cd='cd_'