grep .emit() calls

emit.sh

#!/usr/bin/env bash

echo

find ${1:-.} -name "*.js" \
  | xargs cat \
  | grep '.emit(' \
  | sed 's/.*.emit(//g' \
  | sed -E "s/,|'|); *$//g" \
  | awk '{
    printf "  \033[36m%-10s\033[0m", $1
    for (i = 2; i <= NF; ++i)
      printf "  \033[90m%s\033[0m", $i
    printf "\n"
  }'

echo