Interface SVGLengthList

The SVGLengthList interface defines a list of SVGLength objects. It is used for the baseVal and animVal properties of SVGAnimatedLengthList.

MDN Reference

interface SVGLengthList {
    length: number;
    numberOfItems: number;
    "[iterator]"(): ArrayIterator<SVGLength>;
    appendItem(newItem: SVGLength): SVGLength;
    clear(): void;
    getItem(index: number): SVGLength;
    initialize(newItem: SVGLength): SVGLength;
    insertItemBefore(newItem: SVGLength, index: number): SVGLength;
    removeItem(index: number): SVGLength;
    replaceItem(newItem: SVGLength, index: number): SVGLength;
    [index: number]: SVGLength;
}

Indexable

Index
length numberOfItems
[iterator] appendItem clear getItem initialize insertItemBefore removeItem replaceItem
length: number

The length property of the SVGLengthList interface returns the number of items in the list. It is an alias of numberOfItems to make SVG lists more array-like.

MDN Reference

numberOfItems: number

The numberOfItems property of the SVGLengthList interface returns the number of items in the list. length is an alias of it.

MDN Reference

  • The appendItem() method of the SVGLengthList interface inserts a new item at the end of the list. If the given 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.

    MDN Reference

    Parameters

    Returns SVGLength

  • The clear() method of the SVGLengthList interface clears all existing items from the list, with the result being an empty list.

    MDN Reference

    Returns void

  • The getItem() method of the SVGLengthList interface 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 indexed 0.

    MDN Reference

    Parameters

    • index: number

    Returns SVGLength

  • The initialize() method of the SVGLengthList interface clears all existing 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.

    MDN Reference

    Parameters

    Returns SVGLength

  • The insertItemBefore() method of the SVGLengthList interface inserts a new item into the list at the specified position. The first item is indexed 0. The inserted item is the item itself and not a copy.

    MDN Reference

    Parameters

    Returns SVGLength

  • The removeItem() method of the SVGLengthList interface removes an existing item at the given index from the list.

    MDN Reference

    Parameters

    • index: number

    Returns SVGLength

  • The replaceItem() method of the SVGLengthList interface replaces an existing item in the list with a new item. If the new 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. If the item is already in this list, note that the index of the item to replace is before the removal of the item.

    MDN Reference

    Parameters

    Returns SVGLength

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