olov/defs

Facebook-specific fork of the esprima project

yargs the modern, pirate-themed, successor to optimist.

A JavaScript text diff implementation.

alters a string by replacing multiple range fragments in one fast pass

simple but flexible AST traversal with pre and post visitors

maximally minimal string formatting library

maximally minimal type-testing library

fast and robust stringmap

fast and robust stringset

Break out of functions, recursive or not, in a more composable way than by using exceptions explicitly. Non-local return.

return fn() or default value (in case of exception)