Selection class

Mixed-in types
Available extensions

Properties

first → Element?
The first element.
no setterinherited
hashCode → int
The hash code for this object.
no setterinherited
isEmpty → bool
Whether this collection has no elements.
no setterinherited
isNotEmpty → bool
Whether this collection has at least one element.
no setterinherited
iterator → Iterator<Element?>
A new Iterator that allows iterating the elements of this Iterable.
no setteroverride
iterator → Iterator<Element>

Available on Selection, provided by the SelectionIterator extension

Returns an iterator over the selected (non-null) elements.
no setter
last → Element?
The last element.
no setterinherited
length → int
The number of elements in this Iterable.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
single → Element?
Checks that this iterable has only one element, and returns that element.
no setterinherited

Methods

any(bool test(Element? element)) → bool
Checks whether any element of this iterable satisfies test.
inherited
append(Union2<EachCallback<Element>, String> type) → Selection

Available on Selection, provided by the SelectionAppend extension

If the specified type is a string, appends a new element of this type (tag name) as the last child of each selected element, or before the next following sibling in the update selection if this is an enter selection.
attrGet(String name) → String?

Available on Selection, provided by the SelectionAttr extension

Returns the current value of the specified attribute for the first (non-null) element in the selection.
attrSet(String name, Union2<EachCallback<String?>, String>? value) → Selection

Available on Selection, provided by the SelectionAttr extension

Sets the attribute with the specified name to the specified value on the selected elements and returns this selection.
call(void function(Selection, [List<Object?>?]), [List<Object?>? arguments]) → Selection

Available on Selection, provided by the SelectionCall extension

Invokes the specified function exactly once, passing in this selection along with any optional arguments. Returns this selection.
cast<R>() → Iterable<R>
A view of this iterable as an iterable of R instances.
inherited
classedIs(String classes) → bool

Available on Selection, provided by the SelectionClassed extension

Returns true if and only if the first (non-null) selected element has the specified classes.
classedSet(String names, Union2<EachCallback<bool>, bool> value) → Selection

Available on Selection, provided by the SelectionClassed extension

Assigns or unassigns the specified CSS class names on the selected elements by setting the class attribute or modifying the classList property and returns this selection.
clone(bool deep) → Selection

Available on Selection, provided by the SelectionClone extension

Inserts clones of the selected elements immediately following the selected elements and returns a selection of the newly added clones.
contains(Object? element) → bool
Whether the collection contains an element equal to element.
inherited
dataBind(Union2<EachCallback<Iterable<JSAny?>>, Iterable<JSAny?>> data, [String key(Element, JSAny?, int, Union2<List<Element?>, List<JSAny?>>)?]) → Selection

Available on Selection, provided by the SelectionData extension

Binds the specified list of data with the selected elements, returning a new selection that represents the update selection: the elements successfully bound to data.
dataGet() → List<JSAny?>

Available on Selection, provided by the SelectionData extension

Returns the list of data for the selected elements.
datumGet() → JSAny?

Available on Selection, provided by the SelectionDatum extension

Returns the bound datum for the first (non-null) element in the selection.
datumSet(Union2<EachCallback<JSAny?>, JSAny?>? value) → Selection

Available on Selection, provided by the SelectionDatum extension

Sets the element’s bound data to the specified value on all selected elements.
dispatch(String type, [Union2<EachCallback<DispatchParams?>, DispatchParams?>? parameters]) → Selection

Available on Selection, provided by the SelectionDispatch extension

Dispatches a custom event of the specified type to each selected element, in order.
each(EachCallback<void> function) → Selection

Available on Selection, provided by the SelectionEach extension

Invokes the specified function for each selected element, in order, being passed the current datum (d), the current index (i), and the current group (nodes), with thisArg as the current DOM element (nodes[i]).
elementAt(int index) → Element?
Returns the indexth element.
inherited
empty() → bool

Available on Selection, provided by the SelectionEmpty extension

Returns true if this selection contains no (non-null) elements.
enter() → Selection

Available on Selection, provided by the SelectionEnter extension

Returns the enter selection: placeholder nodes for each datum that had no corresponding DOM element in the selection. (The enter selection is empty for selections not returned by selection.dataBind.)
every(bool test(Element? element)) → bool
Checks whether every element of this iterable satisfies test.
inherited
exit() → Selection

Available on Selection, provided by the SelectionExit extension

Returns the exit selection: existing DOM elements in the selection for which no new datum was found. (The exit selection is empty for selections not returned by selection.dataBind.)
expand<T>(Iterable<T> toElements(Element? element)) → Iterable<T>
Expands each element of this Iterable into zero or more elements.
inherited
filter(Union2<EachCallback<bool>, String> filter) → Selection

Available on Selection, provided by the SelectionFilter extension

Filters the selection, returning a new selection that contains only the elements for which the specified filter is true.
firstWhere(bool test(Element? element), {Element? orElse()?}) → Element?
The first element that satisfies the given predicate test.
inherited
fold<T>(T initialValue, T combine(T previousValue, Element? element)) → T
Reduces a collection to a single value by iteratively combining each element of the collection with an existing value
inherited
followedBy(Iterable<Element?> other) → Iterable<Element?>
Creates the lazy concatenation of this iterable and other.
inherited
forEach(void action(Element? element)) → void
Invokes action on each element of this iterable in iteration order.
inherited
htmlGet() → String?

Available on Selection, provided by the SelectionHtml extension

Returns the inner HTML for the first (non-null) element in the selection.
htmlSet(Union2<EachCallback<String?>, String>? value) → Selection

Available on Selection, provided by the SelectionHtml extension

Sets the inner HTML to the specified value on all selected elements, replacing any existing child elements.
insert(Union2<EachCallback<Element>, String> type, [Union2<EachCallback<Element?>, String>? before]) → Selection

Available on Selection, provided by the SelectionInsert extension

If the specified type is a string, inserts a new element of this type (tag name) before the first element matching the specified before selector for each selected element.
join([String separator = ""]) → String
Converts each element to a String and concatenates the strings.
inherited
joind(Union2<Selection? Function(Selection), String> onenter, [Selection? onupdate(Selection)?, void onexit(Selection)?]) → Selection?

Available on Selection, provided by the SelectionJoin extension

Appends, removes and reorders elements as necessary to match the data that was previously bound by selection.dataBind, returning the merged enter and update selection.
lastWhere(bool test(Element? element), {Element? orElse()?}) → Element?
The last element that satisfies the given predicate test.
inherited
lower() → Selection

Available on Selection, provided by the SelectionLower extension

Re-inserts each selected element, in order, as the first child of its parent. Equivalent to:
map<T>(T toElement(Element? e)) → Iterable<T>
The current elements of this iterable modified by toElement.
inherited
merge(Selection other) → Selection

Available on Selection, provided by the SelectionMerge extension

Returns a new selection merging this selection with the specified other selection or transition.
node() → Element?

Available on Selection, provided by the SelectionNode extension

Returns the first (non-null) element in this selection. If the selection is empty, returns null.
nodes() → List<Element?>

Available on Selection, provided by the SelectionNodes extension

Returns an list of all (non-null) elements in this selection.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
onBind(String typename, OnListener? listener, [JSAny? options]) → Selection

Available on Selection, provided by the SelectionOn extension

Adds or removes a listener to each selected element for the specified event typenames.
onGet(String typename) → OnListener?

Available on Selection, provided by the SelectionOn extension

Returns the currently-assigned listener for the specified event typename on the first (non-null) selected element, if any.
order() → Selection

Available on Selection, provided by the SelectionOrder extension

Re-inserts elements into the document such that the document order of each group matches the selection order.
propertyGet(String property) → JSAny?

Available on Selection, provided by the SelectionProperty extension

Returns the value of the specified property for the first (non-null) element in the selection.
propertySet(String name, Union2<EachCallback<JSAny?>, JSAny?>? value) → Selection

Available on Selection, provided by the SelectionProperty extension

Sets the property with the specified name to the specified value on selected elements.
raise() → Selection

Available on Selection, provided by the SelectionRaise extension

Re-inserts each selected element, in order, as the last child of its parent.
reduce(Element? combine(Element? value, Element? element)) → Element?
Reduces a collection to a single value by iteratively combining elements of the collection using the provided function.
inherited
remove() → Selection

Available on Selection, provided by the SelectionRemove extension

Removes the selected elements from the document.
select([Union2<EachCallback<Element?>, String>? selector]) → Selection

Available on Selection, provided by the SelectionSelect extension

For each selected element, selects the first descendant element that matches the specified selector string.
selectAll([Union2<EachCallback<Iterable<Element?>>, String>? selector]) → Selection

Available on Selection, provided by the SelectionSelectAll extension

For each selected element, selects the descendant elements that match the specified selector string.
selectChild([Union2<bool Function(Element, int, HTMLCollection), String>? selector]) → Selection

Available on Selection, provided by the SelectionSelectChild extension

Returns a new selection with the (first) child of each element of the current selection matching the selector.
selectChildren([Union2<bool Function(Element, int, HTMLCollection), String>? selector]) → Selection

Available on Selection, provided by the SelectionSelectChildren extension

Returns a new selection with the children of each element of the current selection matching the selector.
selection() → Selection

Available on Selection, provided by the SelectionSelection extension

Returns the selection (for symmetry with transition.selection).
singleWhere(bool test(Element? element), {Element? orElse()?}) → Element?
The single element that satisfies test.
inherited
size() → int

Available on Selection, provided by the SelectionSize extension

Returns the total number of (non-null) elements in this selection.
skip(int count) → Iterable<Element?>
Creates an Iterable that provides all but the first count elements.
inherited
skipWhile(bool test(Element? value)) → Iterable<Element?>
Creates an Iterable that skips leading elements while test is satisfied.
inherited
sort(Comparator<JSAny?> compare) → Selection

Available on Selection, provided by the SelectionSort extension

Returns a new selection that contains a copy of each group in this selection sorted according to the compare function. After sorting, re-inserts elements to match the resulting order (per selection.order).
styleGet(String name) → String?

Available on Selection, provided by the SelectionStyle extension

Returns the current value of the specified style property for the first (non-null) element in the selection.
styleSet(String name, Union2<EachCallback<String?>, String>? value, [String priority = ""]) → Selection

Available on Selection, provided by the SelectionStyle extension

Sets the style property with the specified name to the specified value on the selected elements and returns this selection.
take(int count) → Iterable<Element?>
Creates a lazy iterable of the count first elements of this iterable.
inherited
takeWhile(bool test(Element? value)) → Iterable<Element?>
Creates a lazy iterable of the leading elements satisfying test.
inherited
textGet() → String?

Available on Selection, provided by the SelectionText extension

Returns the text content for the first (non-null) element in the selection.
textSet([Union2<EachCallback<String?>, String>? value]) → Selection

Available on Selection, provided by the SelectionText extension

Sets the text content to the specified value on all selected elements, replacing any existing child elements.
toList({bool growable = true}) → List<Element?>
Creates a List containing the elements of this Iterable.
inherited
toSet() → Set<Element?>
Creates a Set containing the same elements as this iterable.
inherited
toString() → String
Returns a string representation of (some of) the elements of this.
inherited
where(bool test(Element? element)) → Iterable<Element?>
Creates a new lazy Iterable with all elements that satisfy the predicate test.
inherited
whereType<T>() → Iterable<T>
Creates a new lazy Iterable with all elements that have type T.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited