ColumnGrid
Defined in: js-api/src/grid.ts:1413
Proxy class for the Dart-based column grid.
Extends
Constructors
Constructor
new ColumnGrid(
dart):ColumnGrid
Defined in: js-api/src/grid.ts:1414
Parameters
| Parameter | Type |
|---|---|
dart | any |
Returns
ColumnGrid
Overrides
Properties
| Property | Modifier | Type | Default value | Description | Inherited from | Defined in |
|---|---|---|---|---|---|---|
_functions | protected | Func[] | [] | - | Widget._functions | js-api/src/widgets/base.ts:214 |
_properties | protected | Property[] | [] | - | Widget._properties | js-api/src/widgets/base.ts:213 |
_root | protected | HTMLElement | undefined | - | Widget._root | js-api/src/u2core/component.ts:445 |
_u2 | readonly | ComponentState | undefined | - | Widget._u2 | js-api/src/u2core/component.ts:82 |
componentMeta? | public | ComponentMetaBase | undefined | The registry metadata of the tag that built this component, stamped by the spec renderer — the single source the introspection surface below is generated from. | Widget.componentMeta | js-api/src/u2core/component.ts:77 |
dart | readonly | any | undefined | - | Widget.dart | js-api/src/grid.ts:1414 |
factory | public | Func | null | null | Constructor function. No parameters, returns [Widget]. | Widget.factory | js-api/src/widgets/base.ts:211 |
isDetached | public | boolean | false | - | Widget.isDetached | js-api/src/widgets/base.ts:218 |
props | public | any | undefined | - | Widget.props | js-api/src/widgets/base.ts:215 |
specProps? | public | Record<string, unknown> | undefined | The props the registry's create was handed, stamped alongside componentMeta: the last resort of the property read below, for a component that keeps a prop under another name or not at all (a create wrapping a bare element). Construction-time values — a live one always wins. | Widget.specProps | js-api/src/u2core/component.ts:81 |
subs | public | Subscription[] | undefined | - | Widget.subs | js-api/src/widgets/base.ts:216 |
temp | public | any | undefined | Contains auxiliary information | Widget.temp | js-api/src/widgets/base.ts:208 |
Accessors
aiDescription
Get Signature
get aiDescription():
string|null
Defined in: js-api/src/u2core/component.ts:152
A short AI-facing briefing, seeded from the registry's usage or description.
Returns
string | null
Set Signature
set aiDescription(
x):void
Defined in: js-api/src/u2core/component.ts:156
Parameters
| Parameter | Type |
|---|---|
x | string | null |
Returns
void
Inherited from
ambientAdoption
Get Signature
get
protectedambientAdoption():boolean
Defined in: js-api/src/widgets/base.ts:272
A widget wrapper minted inside somebody's effect scope must not be auto-disposed with it.
Returns
boolean
Inherited from
children
Get Signature
get children():
Widget<any>[]
Defined in: js-api/src/widgets/base.ts:304
Parent widget up the DOM tree, or null.
Returns
Widget<any>[]
Inherited from
currentColumn
Get Signature
get currentColumn():
Column
Defined in: js-api/src/grid.ts:1518
Returns
dfColumns
Get Signature
get dfColumns():
DataFrame
Defined in: js-api/src/grid.ts:1477
Returns
dfSource
Get Signature
get dfSource():
DataFrame
Defined in: js-api/src/grid.ts:1478
Returns
filter
Get Signature
get filter(): (
c) =>boolean
Defined in: js-api/src/grid.ts:1483
Returns
(c) => boolean
Set Signature
set filter(
f):void
Defined in: js-api/src/grid.ts:1484
Parameters
| Parameter | Type |
|---|---|
f | (c) => boolean |
Returns
void
grid
Get Signature
get grid():
Grid
Defined in: js-api/src/grid.ts:1479
Returns
mouseOverColumn
Get Signature
get mouseOverColumn():
Column
Defined in: js-api/src/grid.ts:1519
Returns
name
Get Signature
get name():
string|undefined
Defined in: js-api/src/u2core/component.ts:469
A named control carries its name in the DOM: data-u2-name is the stable automation id
selectors, tutorials and agents address the control by — the same attribute the spec renderer
stamps on named nodes, so hand-built and spec-built UI share one selector vocabulary.
Derived names (an input's label fallback) never stamp — see Component.deriveName.
Returns
string | undefined
Set Signature
set name(
x):void
Defined in: js-api/src/u2core/component.ts:473
Unique within a spec: the anchor for selection, patches and automation. An accessor pair
(not a field), so a platform descendant's own name accessors override it legally (TS2611).
Parameters
| Parameter | Type |
|---|---|
x | string | undefined |
Returns
void
Inherited from
nameCol
Get Signature
get nameCol():
Column
Defined in: js-api/src/grid.ts:1480
Returns
parent
Get Signature
get parent():
Widget<any> |null
Defined in: js-api/src/widgets/base.ts:301
Parent widget up the DOM tree, or null.
Returns
Widget<any> | null
Inherited from
propertyTarget
Get Signature
get propertyTarget():
unknown
Defined in: js-api/src/u2core/component.ts:250
What this component's properties are read from and written to — prop.get(target) /
prop.set(target, v): the component itself, unless an adoption says otherwise.
Returns
unknown
Inherited from
propertyTier
Get Signature
get propertyTier():
boolean
Defined in: js-api/src/widgets/base.ts:276
Every property getProperties declares is a bind step, read and written on propertyTarget.
Returns
boolean
Inherited from
root
Get Signature
get root():
HTMLElement
Defined in: js-api/src/u2core/component.ts:455
Returns
HTMLElement
Set Signature
set root(
x):void
Defined in: js-api/src/u2core/component.ts:459
Parameters
| Parameter | Type |
|---|---|
x | HTMLElement |
Returns
void
Inherited from
scope
Get Signature
get scope():
Scope
Defined in: js-api/src/u2core/component.ts:53
Minted on first use; assigned before _scopeMinted fires, so the hook's own
this.scope.own(...) reads the stored scope instead of re-entering the mint.
Returns
Inherited from
showSearch
Get Signature
get showSearch():
boolean
Defined in: js-api/src/grid.ts:1492
Returns
boolean
Set Signature
set showSearch(
x):void
Defined in: js-api/src/grid.ts:1493
Parameters
| Parameter | Type |
|---|---|
x | boolean |
Returns
void
type
Get Signature
get type():
string
Defined in: js-api/src/widgets/base.ts:205
Returns
string
Inherited from
typeNameCol
Get Signature
get typeNameCol():
Column
Defined in: js-api/src/grid.ts:1481
Returns
Methods
_notifyPropertyChange()
protected_notifyPropertyChange(p):void
Defined in: js-api/src/widgets/base.ts:351
Notifies the property tier. Called from both the addProperty setter (overrides that skip
super would otherwise lose props.x = writes) and onPropertyChanged (direct calls);
the double notify collapses into one microtask refresh.
Parameters
| Parameter | Type |
|---|---|
p | Property | null |
Returns
void
Inherited from
_ownPropertyChanges()
protected_ownPropertyChanges():ObservableLike<PropertyChange>
Defined in: js-api/src/widgets/base.ts:356
Returns
ObservableLike<PropertyChange>
Inherited from
_scopeMinted()
protected_scopeMinted(_scope):void
Defined in: js-api/src/widgets/base.ts:320
First-mint hook: a platform descendant wires its lifecycle here. Never fired for a scope provided to init — that path runs inside the constructor chain.
Parameters
| Parameter | Type |
|---|---|
_scope | Scope |
Returns
void
Inherited from
_wireDartLifecycle()
protected_wireDartLifecycle():void
Defined in: js-api/src/widgets/base.ts:336
Dart-owned lifecycle: the platform kill disposes the scope, and disposing the scope kills the widget through the kill-walk.
Returns
void
Inherited from
_wireJsLifecycle()
protected_wireJsLifecycle():void
Defined in: js-api/src/widgets/base.ts:327
JS-owned lifecycle: disposing the scope detaches the widget, and vice versa.
Returns
void
Inherited from
_wireLifecycle()
protected_wireLifecycle():void
Defined in: js-api/src/widgets/base.ts:322
Returns
void
Inherited from
addCheckedSelect()
addCheckedSelect():
void
Defined in: js-api/src/grid.ts:1486
Returns
void
addChecks()
addChecks(
isChecked,addAdditionalChecks,additionalChecksName):void
Defined in: js-api/src/grid.ts:1521
Parameters
| Parameter | Type |
|---|---|
isChecked | (colName) => boolean |
addAdditionalChecks | (colName) => boolean |
additionalChecksName | string |
Returns
void
addColumnProperty()
addColumnProperty(
p):Column
Defined in: js-api/src/grid.ts:1539
Parameters
| Parameter | Type |
|---|---|
p | Property |
Returns
addColumnSelectionControls()
addColumnSelectionControls():
void
Defined in: js-api/src/grid.ts:1497
Returns
void
addColumnStats()
addColumnStats(
aggType):Column
Defined in: js-api/src/grid.ts:1538
Parameters
| Parameter | Type |
|---|---|
aggType | string |
Returns
apply()
apply(
properties):Widget
Defined in: js-api/src/widgets/base.ts:261
Parameters
| Parameter | Type | Description |
|---|---|---|
properties | object | - |
Returns
Inherited from
bindProps()
bindProps():
BindProp[]
Defined in: js-api/src/u2core/component.ts:307
The signal-backed subset of the meta props — what a binding picker offers on a named node — plus, under propertyTier, every declared property. Allocates no signal.
Returns
BindProp[]
Inherited from
bindStep()
bindStep(
name):BindSource|Signal<unknown> |null
Defined in: js-api/src/u2core/component.ts:296
One binding step (DD5): a meta-declared prop's same-named Signal member — a named node is a
bind source, generated off componentMeta the way getProperties is — then, under
propertyTier, a cached signal over the declared property. '' answers the default
binding: the component's own value signal, where one exists.
Parameters
| Parameter | Type |
|---|---|
name | string |
Returns
BindSource | Signal<unknown> | null
Inherited from
checkAll()
checkAll(
isChecked?):void
Defined in: js-api/src/grid.ts:1524
Parameters
| Parameter | Type |
|---|---|
isChecked? | boolean |
Returns
void
close()
close():
void
Defined in: js-api/src/grid.ts:1495
Returns
void
columnsToDataFrame()
columnsToDataFrame(
columnsOrder?,addServiceColumns?,serviceColsTagName?):void
Defined in: js-api/src/grid.ts:1540
Parameters
| Parameter | Type |
|---|---|
columnsOrder? | Column<any, any>[] |
addServiceColumns? | boolean |
serviceColsTagName? | string |
Returns
void
deriveName()
protectedderiveName(x):void
Defined in: js-api/src/u2core/component.ts:72
Sets the introspection/form key without claiming an automation id — the label-fallback path:
a caption is not a stable identity, so it never reaches data-u2-name.
Parameters
| Parameter | Type |
|---|---|
x | string | undefined |
Returns
void
Inherited from
detach()
detach():
void
Defined in: js-api/src/grid.ts:1496
Gets called when a widget is detached and will no longer be used. Typically used for unsubscribing from events. Be sure to call super.detach() if this method is overridden.
Returns
void
Overrides
dispose()
dispose():
void
Defined in: js-api/src/u2core/component.ts:147
On a never-engaged wrapper the getter mints here and _scopeMinted wires the
lifecycle (own(kill) + the platform cleanup for Dart-owned), so dispose still kills it;
re-entry from the kill cleanup is a no-op via the scope's disposed flag.
Returns
void
Inherited from
effect()
effect(
fn):this
Defined in: js-api/src/u2core/component.ts:134
Parameters
| Parameter | Type |
|---|---|
fn | () => void |
Returns
this
Inherited from
filterColumns()
filterColumns():
void
Defined in: js-api/src/grid.ts:1487
Returns
void
fireEvent()
protectedfireEvent(eventId,args?):void
Defined in: js-api/src/u2core/component.ts:435
Parameters
| Parameter | Type |
|---|---|
eventId | string |
args? | unknown |
Returns
void
Inherited from
getAdditionalCheckedColumnNames()
getAdditionalCheckedColumnNames():
string[]
Defined in: js-api/src/grid.ts:1532
Returns
string[]
getAdditionalCheckedColumns()
getAdditionalCheckedColumns():
Column<any,any>[]
Defined in: js-api/src/grid.ts:1531
Returns
Column<any, any>[]
getAdditionalCheckedIndexes()
getAdditionalCheckedIndexes():
number[]
Defined in: js-api/src/grid.ts:1530
Returns
number[]
getCheckedColumnNames()
getCheckedColumnNames():
string[]
Defined in: js-api/src/grid.ts:1528
Returns
string[]
getCheckedColumns()
getCheckedColumns():
Column<any,any>[]
Defined in: js-api/src/grid.ts:1527
Returns
Column<any, any>[]
getCheckedIndexes()
getCheckedIndexes():
number[]
Defined in: js-api/src/grid.ts:1526
Returns
number[]
getCol()
getCol(
row):Column
Defined in: js-api/src/grid.ts:1517
Parameters
| Parameter | Type |
|---|---|
row | number |
Returns
getDartProperties()
getDartProperties():
any[]
Defined in: js-api/src/widgets/base.ts:289
Returns
any[]
Inherited from
getFunctions()
getFunctions():
Func[]
Defined in: js-api/src/widgets/base.ts:283
Functions that are applicable to this particular widget. Used in the UI to display context actions, and for the AI integrations.
Returns
Func[]
Inherited from
getProperties()
getProperties():
Property[]
Defined in: js-api/src/widgets/base.ts:279
Returns all properties of this widget: the meta-generated ones plus addProperty's.
Returns
Property[]
Inherited from
getRow()
getRow(
col):number
Defined in: js-api/src/grid.ts:1516
Parameters
| Parameter | Type |
|---|---|
col | Column |
Returns
number
getSelectedColumns()
getSelectedColumns():
Column<any,any>[]
Defined in: js-api/src/grid.ts:1534
Returns
Column<any, any>[]
getWidgetStatus()
getWidgetStatus():
IWidgetStatus
Defined in: js-api/src/widgets/base.ts:422
Returns the widget's runtime structure for automated testing and introspection.
Returns
Inherited from
indexes()
indexes(
rows):number[]
Defined in: js-api/src/grid.ts:1537
Parameters
| Parameter | Type |
|---|---|
rows | string |
Returns
number[]
init()
init(
dfSource,filter?,syncSelections?,order?,addServiceColumns?):void
Defined in: js-api/src/grid.ts:1503
Parameters
| Parameter | Type |
|---|---|
dfSource | DataFrame |
filter? | (c) => boolean |
syncSelections? | boolean |
order? | Column<any, any>[] |
addServiceColumns? | boolean |
Returns
void
initColumnDragDrop()
initColumnDragDrop():
void
Defined in: js-api/src/grid.ts:1502
Returns
void
initColumnManager()
initColumnManager(
dfSource,filter?):void
Defined in: js-api/src/grid.ts:1512
Parameters
| Parameter | Type |
|---|---|
dfSource | DataFrame |
filter? | (c) => boolean |
Returns
void
initColumnSelector()
initColumnSelector(
dfSource,checkAll?,filter?):void
Defined in: js-api/src/grid.ts:1508
Parameters
| Parameter | Type |
|---|---|
dfSource | DataFrame |
checkAll? | boolean |
filter? | (c) => boolean |
Returns
void
initColumnTooltips()
initColumnTooltips():
void
Defined in: js-api/src/grid.ts:1501
Returns
void
initContextMenu()
initContextMenu():
void
Defined in: js-api/src/grid.ts:1511
Returns
void
initGrayedOutColumnStyle()
initGrayedOutColumnStyle():
void
Defined in: js-api/src/grid.ts:1499
Returns
void
initTypeColoring()
initTypeColoring():
void
Defined in: js-api/src/grid.ts:1500
Returns
void
link()
link(
name,source,twoWay):void
Defined in: js-api/src/u2core/component.ts:268
Keeps this component's name step and source equal, echo-suppressed by value; the reverse
direction only where twoWay. A component that took source as its own signal needs no link
and gets none; a read-only step cannot follow anything and gets none either.
Parameters
| Parameter | Type |
|---|---|
name | string |
source | Signal<unknown> |
twoWay | boolean |
Returns
void
Inherited from
onEvent()
onEvent(
eventId?):Observable<any>
Defined in: js-api/src/widgets/base.ts:419
Observes events with the specified eventId. Override in subclasses to provide actual events.
Parameters
| Parameter | Type | Default value |
|---|---|---|
eventId | string | null | null |
Returns
Observable<any>
Inherited from
onFrameAttached()
onFrameAttached(
dataFrame):void
Defined in: js-api/src/widgets/base.ts:295
Parameters
| Parameter | Type |
|---|---|
dataFrame | DataFrame |
Returns
void
Inherited from
onPropertyChanged()
onPropertyChanged(
property):void
Defined in: js-api/src/widgets/base.ts:287
Gets called when viewer's property is changed.
Parameters
| Parameter | Type | Description |
|---|---|---|
property | Property | null | or null, if multiple properties were changed. |
Returns
void
Inherited from
own()
own(
dispose):this
Defined in: js-api/src/u2core/component.ts:139
Parameters
| Parameter | Type |
|---|---|
dispose | () => void |
Returns
this
Inherited from
passesFilter()
passesFilter(
col,columnName?):boolean
Defined in: js-api/src/grid.ts:1489
Parameters
| Parameter | Type |
|---|---|
col | Column |
columnName? | string |
Returns
boolean
propertyChanges()
protectedpropertyChanges():ObservableLike<PropertyChange>
Defined in: js-api/src/widgets/base.ts:366
What refreshes the property tier's cached signals from outside: null where nothing announces a change (one-way).
Returns
ObservableLike<PropertyChange>
Inherited from
refreshStats()
refreshStats():
void
Defined in: js-api/src/grid.ts:1490
Returns
void
registerFunction()
protectedregisterFunction(f):void
Defined in: js-api/src/u2core/component.ts:431
Parameters
| Parameter | Type |
|---|---|
f | FuncLike |
Returns
void
Inherited from
runInScope()
runInScope<
T>(fn):T
Defined in: js-api/src/u2core/component.ts:130
Type Parameters
| Type Parameter |
|---|
T |
Parameters
| Parameter | Type |
|---|---|
fn | () => T |
Returns
T
Inherited from
setSelectedColumns()
setSelectedColumns(
columnIds):void
Defined in: js-api/src/grid.ts:1535
Parameters
| Parameter | Type |
|---|---|
columnIds | any[] |
Returns
void
shouldShowColumnTooltip()
shouldShowColumnTooltip(
col):boolean
Defined in: js-api/src/grid.ts:1488
Parameters
| Parameter | Type |
|---|---|
col | Column |
Returns
boolean
sourceRowsChanged()
sourceRowsChanged():
void
Defined in: js-api/src/widgets/base.ts:293
Returns
void
Inherited from
sub()
sub(
subscription):void
Defined in: js-api/src/widgets/base.ts:254
Registers a subscription to an external event.
Parameters
| Parameter | Type | Description |
|---|---|---|
subscription | Subscription | - |
Returns
void
Inherited from
toDart()
toDart():
any
Defined in: js-api/src/widgets/base.ts:246
Returns
any
Inherited from
build()
staticbuild(builder):Control
Defined in: js-api/src/u2core/component.ts:529
Builds a control out of plain elements: builder runs with the new control's scope
ambient, so signal bindings and nested components inside it are owned by the result.
The ambient scope only spans the synchronous part of builder — components constructed after
an await inside it are adopted by nobody and must be disposed by hand, or constructed before
the first await.
Parameters
| Parameter | Type |
|---|---|
builder | () => HTMLElement | (string | HTMLElement | Control)[] |
Returns
Inherited from
columnManager()
staticcolumnManager(dfSource?,filter?,gridOptions?):ColumnGrid
Defined in: js-api/src/grid.ts:1430
Creates a new column manager grid.
Parameters
| Parameter | Type |
|---|---|
dfSource? | DataFrame |
filter? | (c) => boolean |
gridOptions? | {[key: string]: any; } |
Returns
ColumnGrid
columnReorderManagerDialog()
staticcolumnReorderManagerDialog(df,title,options?):ColumnGrid
Defined in: js-api/src/grid.ts:1435
Creates a new column reorder manager grid.
Parameters
| Parameter | Type |
|---|---|
df | DataFrame |
title | string |
options? | { addAdditionalChecks?: (colName, additionalColumnName?) => boolean; additionalChecksName?: string; addServiceColumns: boolean; applyOrder?: (cg) => void; applyVisibility?: (cg) => void; checks?: (colName) => boolean; dfSource?: Grid; filter?: (c) => boolean; gridOptions?: {[key: string]: any; }; order?: Column<any, any>[]; } |
options.addAdditionalChecks? | (colName, additionalColumnName?) => boolean |
options.additionalChecksName? | string |
options.addServiceColumns? | boolean |
options.applyOrder? | (cg) => void |
options.applyVisibility? | (cg) => void |
options.checks? | (colName) => boolean |
options.dfSource? | Grid |
options.filter? | (c) => boolean |
options.gridOptions? | {[key: string]: any; } |
options.order? | Column<any, any>[] |
Returns
ColumnGrid
columnSelector()
staticcolumnSelector(dfSource,options?):ColumnGrid
Defined in: js-api/src/grid.ts:1467
Creates a new column selector grid.
Parameters
| Parameter | Type |
|---|---|
dfSource | DataFrame |
options? | { checkAll?: boolean; filter?: (c) => boolean; isChecked?: (c) => boolean; } |
options.checkAll? | boolean |
options.filter? | (c) => boolean |
options.isChecked? | (c) => boolean |
Returns
ColumnGrid
create()
staticcreate(options?):ColumnGrid
Defined in: js-api/src/grid.ts:1419
Creates a new grid.
Parameters
| Parameter | Type |
|---|---|
options? | { filter: (c) => boolean; gridOptions: {[key: string]: any; }; isColGrayedOut: (input) => any; showMenuIcon: boolean; } |
options.filter? | (c) => boolean |
options.gridOptions? | {[key: string]: any; } |
options.isColGrayedOut? | (input) => any |
options.showMenuIcon? | boolean |
Returns
ColumnGrid
find()
staticfind(root):Widget<any> |null
Defined in: js-api/src/widgets/base.ts:236
Finds existing widget from its visual root.
Parameters
| Parameter | Type |
|---|---|
root | Element |
Returns
Widget<any> | null
Inherited from
forElement()
staticforElement(el):Control|undefined
Defined in: js-api/src/u2core/component.ts:489
The nearest control owning el — the DOM → component door for tooling, automation and
inspectors (the u2 counterpart of the platform's Widget.find). Best-effort: the last
control constructed on (or assigned) a root wins it.
Parameters
| Parameter | Type |
|---|---|
el | Element | null |
Returns
Control | undefined
Inherited from
fromRoot()
staticfromRoot(root):Widget
Defined in: js-api/src/widgets/base.ts:425
Creates a new widget from the root element.
Parameters
| Parameter | Type |
|---|---|
root | HTMLElement |
Returns
Inherited from
getAll()
staticgetAll():Widget<any>[]
Defined in: js-api/src/widgets/base.ts:231
Returns all currently active widgets.
Returns
Widget<any>[]
Inherited from
init()
staticinit(self,scope?):void
Defined in: js-api/src/u2core/component.ts:89
Per-instance state, for a constructed component and for an adopted platform object alike.
Parameters
| Parameter | Type |
|---|---|
self | Component |
scope? | Scope |
Returns
void
Inherited from
is()
staticis(x):x is Control
Defined in: js-api/src/u2core/component.ts:498
Structural probe by methods only — never .scope: the accessor mints.
Parameters
| Parameter | Type |
|---|---|
x | unknown |
Returns
x is Control
Inherited from
popup()
staticpopup(dfSource,options?):ColumnGrid
Defined in: js-api/src/grid.ts:1455
Creates a new popup grid.
Parameters
| Parameter | Type |
|---|---|
dfSource | DataFrame |
options? | { addEmpty?: boolean; filter?: (c) => boolean; grayedOutColsMode?: boolean; serviceColsTagName?: string; widgetMode?: boolean; } |
options.addEmpty? | boolean |
options.filter? | (c) => boolean |
options.grayedOutColsMode? | boolean |
options.serviceColsTagName? | string |
options.widgetMode? | boolean |
Returns
ColumnGrid
registerCleanup()
staticregisterCleanup(element,cleanup):void
Defined in: js-api/src/widgets/base.ts:242
Registers a cleanup function to run when [element] is killed — i.e. when its host view or pane closes. Also marks the element so the kill-walk can find it.
Parameters
| Parameter | Type |
|---|---|
element | Element |
cleanup | Function |
Returns
void
Inherited from
sameValue()
staticsameValue(a,b):boolean
Defined in: js-api/src/u2core/component.ts:111
The equality the property tier and link suppress echoes by: Object.is, arrays
element-wise, plain objects key-wise (recursive), everything else by identity.
Parameters
| Parameter | Type |
|---|---|
a | unknown |
b | unknown |
Returns
boolean