The JavaScript version also gives your visitors the chance to add a comment to the link when they click on the Like button. If a user is not logged in to Facebook when they visit your site ...

Because it is a very expressive language, JavaScript does not lend itself easily to type-checking systems, the Facebook engineers wrote. Other companies have tackled the challenge of adding static ...

Facebook has reconstructed its Relay JavaScript framework for building ... declarative data fetching—while also simplifying the API, adding features, improving performance, and reducing the ...