Package com.google.gwt.core.client

Class JsArray<T extends JavaScriptObject>

java.lang.Object

com.google.gwt.core.client.JavaScriptObject

com.google.gwt.core.client.JsArray<T>

Type Parameters:

T - the concrete type of object contained in this array

public class JsArray<T extends JavaScriptObject>
extends JavaScriptObject

A simple wrapper around a homogeneous native array of JavaScriptObject values. This class may not be directly instantiated, and can only be returned from a native method. For example, native JsArray getNativeArray() /*-{ return [ { x: 0, y: 1}, { x: 2, y: 3}, { x: 4, y: 5}, ]; }-* /;

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	JsArray()

Method Summary

Modifier and Type	Method	Description
final T	get(int index)	Gets the object at a given index.
final String	join()	Convert each element of the array to a String and join them with a comma separator.
final String	join(String separator)	Convert each element of the array to a String and join them with a comma separator.
final int	length()	Gets the length of the array.
final void	push(T value)	Pushes the given value onto the end of the array.
final void	set(int index, T value)	Sets the object value at a given index.
final void	setLength(int newLength)	Reset the length of the array.
final T	shift()	Shifts the first value off the array.
final void	unshift(T value)	Shifts a value onto the beginning of the array.

Methods inherited from class com.google.gwt.core.client.JavaScriptObject

cast, createArray, createArray, createFunction, createObject, equals, hashCode, toSource, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

JsArray

protected JsArray()

Method Details

get

public final T get(int index)

Gets the object at a given index.

Parameters:

index - the index to be retrieved

Returns:

the object at the given index, or null if none exists

join

public final String join()

Convert each element of the array to a String and join them with a comma separator. The value returned from this method may vary between browsers based on how JavaScript values are converted into strings.

join

public final String join(String separator)

Convert each element of the array to a String and join them with a comma separator. The value returned from this method may vary between browsers based on how JavaScript values are converted into strings.

length

public final int length()

Gets the length of the array.

Returns:

the array length

push

public final void push(T value)

Pushes the given value onto the end of the array.

set

public final void set(int index,
 T value)

Sets the object value at a given index. If the index is out of bounds, the value will still be set. The array's length will be updated to encompass the bounds implied by the added object.

Parameters:

index - the index to be set

value - the object to be stored

setLength

public final void setLength(int newLength)

Reset the length of the array.

Parameters:

newLength - the new length of the array

shift

public final T shift()

Shifts the first value off the array.

Returns:

the shifted value

unshift

public final void unshift(T value)

Shifts a value onto the beginning of the array.

Parameters:

value - the value to the stored