Zsh prompt with git branch, current node version and .nvmrc version

.zshrc

##### PS1 #######
autoload -U colors && colors
parse_git_branch() {
    git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/ (\1)/'
}

check_node() {
    diff <(node -v 2> /dev/null) <(cat .nvmrc 2> /dev/null)| sed -e "/^[^>*]/d" -e 's/>.* \(.*\)/ (\1)/'
}

current_node() {
    node -v 2> /dev/null | sed 's/\(.*\)/ (\1)/'
}

setopt PROMPT_SUBST
PROMPT='%F{red}%n%f@%F{yellow}%m%f:%F{82}%d%f%F{33}$(parse_git_branch)%f%F{159}$(current_node)%f%F{197}$(check_node)%f
%F{27}%#%f '
export CLICOLOR=1
export LSCOLORS=ExFxCxDxBxegedabagacad
###################

user@host:cwd (branch) (current nvm version) (needed nvm version if it's not equal with current)