Java Module jdk.jsobject Package netscape.javascript Class JSObject（JDK11）

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java.lang.Object
- netscape.javascript.JSObject

```
public abstract class JSObject
extends Object
```
Allows Java code to manipulate JavaScript objects.

When a JavaScript object is passed or returned to Java code, it is wrapped in an instance of JSObject. When a JSObject instance is passed to the JavaScript engine, it is unwrapped back to its original JavaScript object. The JSObject class provides a way to invoke JavaScript methods and examine JavaScript properties.

Any data returned from the JavaScript engine to Java is converted to Java data types. Certain data passed to the JavaScript engine is converted to JavaScript data types.

Constructor Summary

Constructors
Modifier	Constructor	Description
`protected`	`JSObject()`	Constructs a new JSObject.

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Concrete Methods Deprecated Methods
Modifier and Type	Method	Description
`abstract Object`	`call(String methodName, Object... args)`	Calls a JavaScript method.
`abstract Object`	`eval(String s)`	Evaluates a JavaScript expression.
`abstract Object`	`getMember(String name)`	Retrieves a named member of a JavaScript object.
`abstract Object`	`getSlot(int index)`	Retrieves an indexed member of a JavaScript object.
`static JSObject`	`getWindow(Applet applet)`	Deprecated. The Applet API is deprecated.
`abstract void`	`removeMember(String name)`	Removes a named member of a JavaScript object.
`abstract void`	`setMember(String name, Object value)`	Sets a named member of a JavaScript object.
`abstract void`	`setSlot(int index, Object value)`	Sets an indexed member of a JavaScript object.

Methods declared in class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - JSObject
```
protected JSObject()
```
    Constructs a new JSObject. Users should neither call this method nor subclass JSObject.
- Method Detail
  - call
```
public abstract Object call(String methodName,
                            Object... args)
                     throws JSException
```
    Calls a JavaScript method. Equivalent to "this.methodName(args[0], args[1], ...)" in JavaScript.
    
    Parameters:
    
    methodName - The name of the JavaScript method to be invoked.
    
    args - the Java objects passed as arguments to the method.
    
    Returns:
    
    Result of the method.
    
    Throws:
    
    JSException - when an error is reported from the browser or JavaScript engine.
  - eval
```
public abstract Object eval(String s)
                     throws JSException
```
    Evaluates a JavaScript expression. The expression is a string of JavaScript source code which will be evaluated in the context given by "this".
    
    Parameters:
    
    s - The JavaScript expression.
    
    Returns:
    
    Result of the JavaScript evaluation.
    
    Throws:
    
    JSException - when an error is reported from the browser or JavaScript engine.
  - getMember
```
public abstract Object getMember(String name)
                          throws JSException
```
    Retrieves a named member of a JavaScript object. Equivalent to "this.name" in JavaScript.
    
    Parameters:
    
    name - The name of the JavaScript property to be accessed.
    
    Returns:
    
    The value of the propery.
    
    Throws:
    
    JSException - when an error is reported from the browser or JavaScript engine.
  - setMember
```
public abstract void setMember(String name,
                               Object value)
                        throws JSException
```
    Sets a named member of a JavaScript object. Equivalent to "this.name = value" in JavaScript.
    
    Parameters:
    
    name - The name of the JavaScript property to be accessed.
    
    value - The value of the propery.
    
    Throws:
    
    JSException - when an error is reported from the browser or JavaScript engine.
  - removeMember
```
public abstract void removeMember(String name)
                           throws JSException
```
    Removes a named member of a JavaScript object. Equivalent to "delete this.name" in JavaScript.
    
    Parameters:
    
    name - The name of the JavaScript property to be removed.
    
    Throws:
    
    JSException - when an error is reported from the browser or JavaScript engine.
  - getSlot
```
public abstract Object getSlot(int index)
                        throws JSException
```
    Retrieves an indexed member of a JavaScript object. Equivalent to "this[index]" in JavaScript.
    
    Parameters:
    
    index - The index of the array to be accessed.
    
    Returns:
    
    The value of the indexed member.
    
    Throws:
    
    JSException - when an error is reported from the browser or JavaScript engine.
  - setSlot
```
public abstract void setSlot(int index,
                             Object value)
                      throws JSException
```
    Sets an indexed member of a JavaScript object. Equivalent to "this[index] = value" in JavaScript.
    
    Parameters:
    
    index - The index of the array to be accessed.
    
    value - The value to set
    
    Throws:
    
    JSException - when an error is reported from the browser or JavaScript engine.
  - getWindow
```
@Deprecated(since="9")
public static JSObject getWindow(Applet applet)
                          throws JSException
```
    Deprecated.
    The Applet API is deprecated. See the java.applet package documentation for further information.
    
    Returns a JSObject for the window containing the given applet. This method only works when the Java code is running in a browser as an applet. The object returned may be used to access the HTML DOM directly.
    
    Parameters:
    
    applet - The applet.
    
    Returns:
    
    JSObject representing the window containing the given applet or null if we are not connected to a browser.
    
    Throws:
    
    JSException - when an error is reported from the browser or JavaScript engine or if applet is null

Java Module jdk.jsobject Package netscape.javascript Class JSObject（JDK11）

Class JSObject

Constructor Summary

Method Summary

Methods declared in class java.lang.Object

Constructor Detail

JSObject

Method Detail

call

eval

getMember

setMember

removeMember

getSlot

setSlot

getWindow