Duplicate Code finder!
This is a cli tool. Which you can find longest repeated codes blocks in your source code. -c Contains with argument is required for the algorithm to work efficiently.
How to use
$ npm i -g duplicatecode
$ duplicatecode -f ./src -c function
$ duplicatecode -f ./node_modules -c private
This algorithm is focused on speed, and able to scan even your node_modules folder and find duplicate codes.