SimpleChange
class
Represents a basic change from a previous to a new value for a single property on a directive instance. Passed as a value in a SimpleChanges
object to the ngOnChanges
hook.
class SimpleChange { constructor(previousValue: any, currentValue: any, firstChange: boolean) previousValue: any currentValue: any firstChange: boolean isFirstChange(): boolean }
See also
Constructor
|
previousValue |
any |
|
currentValue |
any |
|
firstChange |
boolean |
Properties
Property | Description |
---|---|
previousValue: any |
Declared in Constructor |
currentValue: any |
Declared in Constructor |
firstChange: boolean |
Declared in Constructor |
Methods
isFirstChange()
|
---|
Check whether the new value is the first value assigned. |
|
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Licensed under the Creative Commons Attribution License 4.0.
https://v10.angular.io/api/core/SimpleChange