md, mvd and cpd

I have gotten so much mileage out of these three zsh functions for making directories for over a decade, I should’ve posted them a long time ago but I just didn’t think to.

md () {
    mkdir -p $1
    cd $1
}

mvd () {
    mkdir -p "${@[$#]}"
    mv "$@"
    cd "${@[$#]}"
}

cpd () {
    mkdir -p "${@[$#]}"
    cp -r "$@"
    cd "${@[$#]}"
}