The code that runs the web is a melting pot of programming languages and technologies. JavaScript, the most popular language on the web, is the standard for writing code that runs in your browser ...

Meta hands its open-source Jest JavaScript testing framework to the OpenJS Foundation to let the project flourish as a community-led initiative.

With Tuesday’s release of Flow, an open source static type checker, Facebook engineers are continuing their recent efforts to seed the community at large with tools built in-house. “Flow adds ...

Now open sourced by Facebook under an MIT licence, Hermes is supposed to supercharge startup times, drain less memory and result in a smaller overall application code footprint.

Fastlane founder Felix Krause has revealed that Facebook and Instagram's in-app browsers inject JavaScript into third-party websites. Krause originally said the in-app browsers were injecting the ...

JavaScript libraries from various advertising and analytics services are siphoning user data from web pages where the "Login with Facebook" feature is being used.