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    SVGNumberList

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    SVG number list interface

    The SVGNumberList defines a list of SVGNumber objects.

    An SVGNumberList object can be designated as read only, which means that attempts to modify the object will result in an exception being thrown.

    Note: Starting in Gecko 5.0,the SVGNumberList DOM interface is now indexable and can be accessed like arrays

    Interface overview

    Also implement None
    Methods
    Properties
    • readonly unsigned long numberOfItem
    • readonly unsigned long length
    Normative document SVG 1.1 (2nd Edition)

    Properties

    Name Type Description
    numberOfItem unsigned long The number of items in the list.
    length unsigned long The number of items in the list.

    Methods

    Name & Arguments Return Description
    clear() void

    Clears all existing current items from the list, with the result being an empty list.

    Exceptions:

    • a DOMException with code NO_MODIFICATION_ALLOWED_ERR is raised when the list corresponds to a read only attribute or when the object itself is read only.
    initialize(in SVGNumber newItem) SVGNumber

    Clears all existing current items from the list and re-initializes the list to hold the single item specified by the parameter. If the inserted item is already in a list, it is removed from its previous list before it is inserted into this list. The inserted item is the item itself and not a copy. The return value is the item inserted into the list.

    Exceptions:

    • a DOMException with code NO_MODIFICATION_ALLOWED_ERR is raised when the list corresponds to a read only attribute or when the object itself is read only.
    getItem(in unsigned long index) SVGNumber

    Returns the specified item from the list. The returned item is the item itself and not a copy. Any changes made to the item are immediately reflected in the list. The first item is number 0.

    Exceptions:

    • a DOMException with code NO_MODIFICATION_ALLOWED_ERR is raised when the list corresponds to a read only attribute or when the object itself is read only.
    insertItemBefore(in SVGNumber newItem, in unsigned long index) SVGNumber

    Inserts a new item into the list at the specified position. The first item is number 0. If newItem is already in a list, it is removed from its previous list before it is inserted into this list. The inserted item is the item itself and not a copy. If the item is already in this list, note that the index of the item to insert before is before the removal of the item. If the index is equal to 0, then the new item is inserted at the front of the list. If the index is greater than or equal to numberOfItems, then the new item is appended to the end of the list.

    Exceptions:

    • a DOMException with code NO_MODIFICATION_ALLOWED_ERR is raised when the list corresponds to a read only attribute or when the object itself is read only.
    replaceItem(in SVGNumber newItem, in unsigned long index) SVGNumber

    Replaces an existing item in the list with a new item. If newItem is already in a list, it is removed from its previous list before it is inserted into this list. The inserted item is the item itself and not a copy. If the item is already in this list, note that the index of the item to replace is before the removal of the item.

    Exceptions:

    • a DOMException with code NO_MODIFICATION_ALLOWED_ERR is raised when the list corresponds to a read only attribute or when the object itself is read only.
    • a DOMException with code INDEX_SIZE_ERR is raised if the index number is greater than or equal to numberOfItems.
    removeItem(in unsigned long index) SVGNumber

    Removes an existing item from the list.

    Exceptions:

    • a DOMException with code NO_MODIFICATION_ALLOWED_ERR is raised when the list corresponds to a read only attribute or when the object itself is read only.
    • a DOMException with code INDEX_SIZE_ERR is raised if the index number is greater than or equal to numberOfItems.
    appendItem(in SVGNumber newItem) SVGNumber

    Inserts a new item at the end of the list. If newItem is already in a list, it is removed from its previous list before it is inserted into this list. The inserted item is the item itself and not a copy.

    Exceptions:

    • a DOMException with code NO_MODIFICATION_ALLOWED_ERR is raised when the list corresponds to a read only attribute or when the object itself is read only.

    Browser compatibility

    Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
    Basic support ? ? ? ? ?
    Feature Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
    Basic support Not supported ? ? ? ?

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