Package com.vaadin.client.flow.util

Class NativeFunction

java.lang.Object

com.vaadin.client.flow.util.NativeFunction

@JsType(isNative=true,
        name="Function",
        namespace="<global>")
public class NativeFunction
extends Object

JsInterop wrapper for interacting with the JavaScript Function type.

Since:

1.0

Author:

Vaadin Ltd

Constructor Summary

Constructors

Constructor	Description
NativeFunction(String... paramsAndCode)	Creates a new function with the given parameters and implementation.

Method Summary

Modifier and Type	Method	Description
Object	apply(Object thisArg, JsArray<?> arguments)	Invokes this function with a given this and arguments provided as an array.
Object	call(Object thisArg, Object... arguments)	Invokes this function with a given this and arguments provides as varargs.
static <T> T	create(String... paramsAndCode)	Creates a new function with the given parameters and implementation.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

NativeFunction

public NativeFunction(String... paramsAndCode)

Creates a new function with the given parameters and implementation.

Parameters:

paramsAndCode - parameter names followed by the code of the function

Method Details

apply

public Object apply(Object thisArg,
 JsArray<?> arguments)

Invokes this function with a given this and arguments provided as an array.

Parameters:

thisArg - the value of this

arguments - an array of arguments

Returns:

the return value of the invocation

call

public Object call(Object thisArg,
 Object... arguments)

Invokes this function with a given this and arguments provides as varargs.

Parameters:

thisArg - the value of this

arguments - the arguments to invoke this function with

Returns:

the return value of the invocation

create

@JsOverlay
public static <T> T create(String... paramsAndCode)

Creates a new function with the given parameters and implementation. The return value of this method is intended to be used as a type annotated with @JsFunction.

Type Parameters:

T - the function type

Parameters:

paramsAndCode - parameter names followed by the code of the function

Returns:

the native function