3x faster that JS implementation.
To compile the extension for the first time, run
$ npm i
$ npm run configure
$ npm run build
All subsequent builds only need npm run build
You can confirm everything built correctly by running the test suite.
After building:
$ node
> var fsc = require('fast-string-similarity')
undefined
> fsc.computeStringSimilarity("the quick brown fox", "the quick not brown fox")
0.8484848484848485
$ npm test