extendDefined¶

Overview¶

Like phet-core's extend, but does not overwrite properties with undefined values.

For example:

extendDefined( { a: 5 }, { a: undefined } ) will return { a: 5 }

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

Source Code¶

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