Under File/Examples, scroll down and look for the ESP8266 folder, such as ESP8266WebServer and ESP8266WiFi.
Cheers,
John
It does seem that arduino definitely has a different way of doing things. Looks like all the libraries are #included in as source and compiled as one big file.
Looks like all the libraries are #included in as source and compiled as one big file.
This allows for new functionality/flexibility/customizations. You are not stuck with whatever code came from the factory.