HERE Maps API for JavaScript - API Reference: Class: ChangeEvent

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HomeHERE Maps API for JavaScript - API Reference...IndexClass: ChangeEvent

Table of Contents

Class: ChangeEvent

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Last UpdatedMay 21, 2025
2 minute read

H .map.ChangeEvent

new H.map.ChangeEvent (type, newValue, oldValue, modifiers)

This event signalizes map-related changes.

Search:

Name	Type	Description
`type`	string	The type of the event
`newValue`	Object	The view values after the change
`oldValue`	Object	The view values before the change
`modifiers`	H.math.BitMask.<!H.map.ChangeEvent.Type>	A bitmask indicating which values were changed.

Extends

H.util.ChangeEvent

Members

H.map.ChangeEvent.Type static

This enumeration specifies the bits each indicating a change in a specific property of the map.

Properties:

Search:

Name	Description
`SIZE`	indicates change in map viewport size
`POSITION`	indicates change in map look-at data position
`HEADING`	indicates change in map look-at data heading
`TILT`	indicates change in map look-at data tilt
`INCLINE`	indicates change in map look-at data incline
`ZOOM`	indicates change in map look-at data zoom
`BOUNDS`	indicates change in map look-at data bounds

AT_TARGET number constant inherited

This property indicates that the event is being evaluated at the target.

BOUNDS number Deprecated : since 3.1.12.0 constant

This modifier indicates a change to the "bounds" property. Use H.map.ChangeEvent.Type instead.

BUBBLING_PHASE number constant inherited

This property identifies the current event phase as the bubbling phase.

CAPTURING_PHASE number constant inherited

This property identifies the current event phase as the capturing phase.

currentTarget * inherited

This property holds an object that receives notification of the event (via an attached listener).

defaultPrevented boolean inherited

This property holds a value indicating if preventDefault() was called on the current event.

eventPhase number inherited

This property indicates which phase of the event flow is being evaluated.

HEADING number Deprecated : since 3.1.12.0 constant

This modifier indicates a change to the "heading" property. Use H.map.ChangeEvent.Type instead.

INCLINE number Deprecated : since 3.1.12.0 constant

This modifier indicates a change to the "incline" property. Use H.map.ChangeEvent.Type instead.

newValue * inherited

This property holds the value of the property after it changed.

oldValue * inherited

This property holds the value of the property before it changed.

POSITION number Deprecated : since 3.1.12.0 constant

This modifier indicates a change to the "position" property. Use H.map.ChangeEvent.Type instead.

SIZE number Deprecated : since 3.1.12.0 constant

This modifier indicates a change to the "size" property. Use H.map.ChangeEvent.Type instead.

target * inherited

This property holds the object which triggered the event.

TILT number Deprecated : since 3.1.12.0 constant

This modifier indicates a change to the "tilt" property. Use H.map.ChangeEvent.Type instead.

type string inherited

This property holds the name of the dispatched event.

ZOOM number Deprecated : since 3.1.12.0 constant

This modifier indicates a change to the "zoom" property. Use H.map.ChangeEvent.Type instead.

Methods

preventDefault () inherited

This method sets a flag that can be used to prevent the default behavior when the even is fired.

stopPropagation () inherited

This method stops the propagation of the event.

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