# Class HashSet

- [TopLevel.Object](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md)
  - [dw.util.Collection](/docs/commerce/b2c-commerce/references/b2c-script-api/dw.util.Collection.md)
    - [dw.util.Set](/docs/commerce/b2c-commerce/references/b2c-script-api/dw.util.Set.md)
      - [dw.util.HashSet](/docs/commerce/b2c-commerce/references/b2c-script-api/dw.util.HashSet.md)

Represents a HashSet

## Constructor Summary

| Constructor                                                                                                              | Description                                                                                      |
| ------------------------------------------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------------------ |
| [HashSet](#hashset)()                                                                                                    | Constructs a new HashMap.                                                                        |
| [HashSet](#hashsetcollection)([Collection](/docs/commerce/b2c-commerce/references/b2c-script-api/dw.util.Collection.md)) | Construct a new HashSet by  initializing the HashSet with the elements of the  given collection. |

## Method Summary

| Method                                                                                    | Description                         |
| ----------------------------------------------------------------------------------------- | ----------------------------------- |
| [clone](/docs/commerce/b2c-commerce/references/b2c-script-api/dw.util.HashSet.md#clone)() | Returns a shallow copy of this set. |

### Methods inherited from class Collection

[add](/docs/commerce/b2c-commerce/references/b2c-script-api/dw.util.Collection.md#addobject), [add1](/docs/commerce/b2c-commerce/references/b2c-script-api/dw.util.Collection.md#add1object), [addAll](/docs/commerce/b2c-commerce/references/b2c-script-api/dw.util.Collection.md#addallcollection), [clear](/docs/commerce/b2c-commerce/references/b2c-script-api/dw.util.Collection.md#clear), [contains](/docs/commerce/b2c-commerce/references/b2c-script-api/dw.util.Collection.md#containsobject), [containsAll](/docs/commerce/b2c-commerce/references/b2c-script-api/dw.util.Collection.md#containsallcollection), [getLength](/docs/commerce/b2c-commerce/references/b2c-script-api/dw.util.Collection.md#getlength), [isEmpty](/docs/commerce/b2c-commerce/references/b2c-script-api/dw.util.Collection.md#isempty), [iterator](/docs/commerce/b2c-commerce/references/b2c-script-api/dw.util.Collection.md#iterator), [remove](/docs/commerce/b2c-commerce/references/b2c-script-api/dw.util.Collection.md#removeobject), [removeAll](/docs/commerce/b2c-commerce/references/b2c-script-api/dw.util.Collection.md#removeallcollection), [retainAll](/docs/commerce/b2c-commerce/references/b2c-script-api/dw.util.Collection.md#retainallcollection), [size](/docs/commerce/b2c-commerce/references/b2c-script-api/dw.util.Collection.md#size), [toArray](/docs/commerce/b2c-commerce/references/b2c-script-api/dw.util.Collection.md#toarray), [toArray](/docs/commerce/b2c-commerce/references/b2c-script-api/dw.util.Collection.md#toarraynumber-number)

### Methods inherited from class Object

[assign](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#assignobject-object), [create](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#createobject), [create](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#createobject-object), [defineProperties](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#definepropertiesobject-object), [defineProperty](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#definepropertyobject-object-object), [entries](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#entriesobject), [freeze](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#freezeobject), [fromEntries](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#fromentriesiterable), [getOwnPropertyDescriptor](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#getownpropertydescriptorobject-object), [getOwnPropertyNames](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#getownpropertynamesobject), [getOwnPropertySymbols](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#getownpropertysymbolsobject), [getPrototypeOf](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#getprototypeofobject), [hasOwnProperty](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#hasownpropertystring), [is](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#isobject-object), [isExtensible](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#isextensibleobject), [isFrozen](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#isfrozenobject), [isPrototypeOf](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#isprototypeofobject), [isSealed](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#issealedobject), [keys](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#keysobject), [preventExtensions](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#preventextensionsobject), [propertyIsEnumerable](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#propertyisenumerablestring), [seal](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#sealobject), [setPrototypeOf](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#setprototypeofobject-object), [toLocaleString](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#tolocalestring), [toString](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#tostring), [valueOf](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#valueof), [values](/docs/commerce/b2c-commerce/references/b2c-script-api/TopLevel.Object.md#valuesobject)

## Constructor Details

### HashSet()

- HashSet()
  - : Constructs a new HashMap.

***

### HashSet(Collection)

- HashSet(collection: [Collection](/docs/commerce/b2c-commerce/references/b2c-script-api/dw.util.Collection.md))
  - : Construct a new HashSet by
    initializing the HashSet with the elements of the
    given collection.

    **Parameters:**

    - collection - the collection to add to the set.

***

## Method Details

### clone()

- clone(): [HashSet](/docs/commerce/b2c-commerce/references/b2c-script-api/dw.util.HashSet.md)
  - : Returns a shallow copy of this set.

    **Returns:**

    - a shallow copy of this set.

***