dart:html

length property

int length

Returns the number of objects in this list.

The valid indices for a list are 0 through length - 1.

Source

@DomName('HTMLCollection.length')
@DocsEditable()
int get length => _blink.BlinkHTMLCollection.instance.length_Getter_(this);

void length=(int value)

Changes the length of this list.

If newLength is greater than the current length, entries are initialized to null.

Throws an UnsupportedError if the list is fixed-length.

Source

set length(int value) {
  throw new UnsupportedError("Cannot resize immutable List.");
}