Node.js inspect function and plugin for zsh

inspect.zsh

# INSPECT

function inspect () {
  eval NODE_OPTIONS="--inspect-brk" $@
}

# INSPECT PLUGIN
# Toggles the "inspect " prefix upon double ESC key

function plugin-inspect () {
  if [[ $LBUFFER == inspect\ * ]]; then
    LBUFFER=`echo $LBUFFER | cut -d' ' -f2-`
  else
    LBUFFER="inspect $LBUFFER"
  fi
}

zle -N plugin-inspect
bindkey "\e\e" plugin-inspect