Use split+join instead of ES2018 feature(look behind)
Use split+join instead of ES2018 feature(look behind)

https://github.com/tc39/proposal-regexp-lookbehind
This feature is not supported in many environment (ex. Node.js 8.9.x, Safari etc).

phenyl-js/phenyl,phenyl-js/phenyl,phenyl-js/phenyl,phenyl-js/phenyl