extract json/yaml from the beginning of text files

Define a non-enumerable property on an object. Uses Reflect.defineProperty when available, otherwise Object.defineProperty.

Extend an object with the properties of additional objects. node.js/javascript util.

JSS plugin that ensures style properties extend each other instead of override

Returns an object with on-event callback props curried with provided args.

Copy properties deeply between two objects.

Runtime type checking for React props and similar objects.

Define a lazily evaluated property on an object

Processes each properties of an object deeply.

Force V8 to use fast properties for an object