extend¶

Overview¶

Like Underscore's _.extend and PHET_CORE/merge, but with hardcoded support for ES5 getters/setters. In general this type shouldn't be used for phet's options pattern, and instead was designed to support extension for defining mixins and object prototypes.

See https://github.com/documentcloud/underscore/pull/986.

@author Jonathan Olson <jonathan.olson@colorado.edu>

Source Code¶

See the source for extend.ts in the phet-core repository.