count total lines of code in a directory - linux bash

count.sh

for type in ts css html less json; do
 echo "total lines of .$type files";
 lines=$(( find ./ -path './*/node_modules' -prune -o -name "*.$type" -print0 | xargs -0 cat ) | wc -l);
 echo "$lines";
done;

# example output:
# total lines of .ts files
# 34377
# total lines of .css files
# 10423
# total lines of .html files
# 125003
# total lines of .less files
# 14517
# total lines of .json files
# 519477