These docs are for v1.2. Click to read the latest docs for v2-beta.x.

.extend(object, ...extensions)

WHS.extend() or just WHS.extend() is made to simplify object comparing process. We use it to check object for undefined parameters and fill them with defaults defined by native class.

That's how you can use it:

WHS.extend({
  bannanas: 10,
  apples: 15,
  pineapples: 20
}, {
  apples: 10,
  chocolate: 12
});

Will return:

// Result: 
{
  bannanas: 10,
  apples: 15,
  pineapples: 20,
  chocolate: 12
}