react4j

Interface Component.SetStateCallback

Enclosing class:

Component

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@JsFunction
 @FunctionalInterface
public static interface Component.SetStateCallback

Callback function for updating state. Useful if the state update is based on current state.

Method Summary

Modifier and Type	Method and Description
jsinterop.base.JsPropertyMap<java.lang.Object>	onSetState(jsinterop.base.JsPropertyMap<java.lang.Object> previousState, jsinterop.base.JsPropertyMap<java.lang.Object> currentProps) Callback used to update state.

Method Detail

onSetState

@Nullable
jsinterop.base.JsPropertyMap<java.lang.Object> onSetState(@Nullable
                                                                    jsinterop.base.JsPropertyMap<java.lang.Object> previousState,
                                                                    @Nullable
                                                                    jsinterop.base.JsPropertyMap<java.lang.Object> currentProps)

Callback used to update state. Result is merged into existing state. Return null to abort state update.

Parameters:

previousState - the preiovus state.

currentProps - the current props.

Returns:

the state to shallow merge or null to abort state update.