JSUndefined (GraalVM SDK Java API Reference)

java.lang.Object

org.graalvm.webimage.api.JSValue

org.graalvm.webimage.api.JSUndefined

public final class JSUndefined extends JSValue

Java representation of the JavaScript undefined value.

Method Summary

Modifier and Type

Method

Description

static JSUndefined

instance()

boolean

isUndefined()

Checks whether this is the JavaScript undefined value.

String

typeof()

Methods inherited from class JSValue
as, asBigInteger, asBoolean, asByte, asChar, asDouble, asFloat, asInt, asLong, asShort, asString, checkedCoerce, isUndefined, isUndefined, stringValue, toString, undefined

Methods inherited from class Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Method Details
- instance
  
  public static JSUndefined instance()
- isUndefined
  
  public boolean isUndefined()
  
  Description copied from class: JSValue
  
  Checks whether this is the JavaScript undefined value.
  
  Overrides:
  
  isUndefined in class JSValue
- typeof
  
  public String typeof()
  
  Specified by:
  
  typeof in class JSValue