Rx.CompositeDisposable class

Represents a group of disposable resources that are disposed together.

Usage

The follow example shows the basic usage of an Rx.CompositeDisposable.

var d1 = Rx.Disposable.create(() => console.log('one'));

var d2 = Rx.Disposable.create(() => console.log('two'));

// Initialize with two disposables
var disposables = new Rx.CompositeDisposable(d1, d2);

disposables.dispose();
// => one
// => two

Location

• rx.js

CompositeDisposable Constructor

• constructor

CompositeDisposable Instance Methods

• add
• clear
• contains
• dispose
• remove
• toArray

CompositeDisposable Instance Properties

• isDisposed
• length

CompositeDisposable Constructor

Rx.CompositeDisposable(...args)

# Ⓢ

Initializes a new instance of the Rx.CompositeDisposable class from a group of disposables.

参数

1. args (Array|arguments): Disposables that will be disposed together.

例

var d1 = Rx.Disposable.create(() => console.log('one'));

var d2 = Rx.Disposable.create(() => console.log('two'));

// Initialize with two disposables
var disposables = new Rx.CompositeDisposable(d1, d2);

disposables.dispose();
// => one
// => two

Location

• rx.js

CompositeDisposable Instance Methods

Rx.CompositeDisposable.prototype.add(item)

# Ⓢ

Adds a disposable to the CompositeDisposable or disposes the disposable if the CompositeDisposable is disposed.

参数

1. item (Disposable): Disposable to add.

例

var disposables = new Rx.CompositeDisposable();

var d1 = Rx.Disposable.create(() => console.log('one'));

disposables.add(d1);

disposables.dispose();
// => one

Location

• rx.js

Rx.CompositeDisposable.prototype.clear()

# Ⓢ

Removes and disposes all disposables from the CompositeDisposable, but does not dispose the CompositeDisposable.

例

var d1 = Rx.Disposable.create(() => console.log('one'));

var disposables = new Rx.CompositeDisposable(d1);

console.log(disposables.length);
// => 1

disposables.clear();
// => one

console.log(disposables.length);
// => 0

Location

• rx.js

Rx.CompositeDisposable.prototype.contains(item)

# Ⓢ

Determines whether the CompositeDisposable contains a specific disposable.

参数

1. item (Disposable): Disposable to search for.

返回值

(Boolean): true if the disposable was found; otherwise, false.

例

var disposables = new Rx.CompositeDisposable();

var d1 = Rx.Disposable.create(() => console.log('one'));

disposables.add(d1);

console.log(disposables.contains(d1));
// => true

Location

• rx.js

Rx.CompositeDisposable.prototype.dispose()

# Ⓢ

Disposes all disposables in the group and removes them from the group.

例

var d1 = Rx.Disposable.create(() => console.log('one'));

var d2 = Rx.Disposable.create(() => console.log('two'));

var disposables = new Rx.CompositeDisposable(d1, d2);

disposables.dispose();
// => one
// => two

console.log(disposables.length);
// => 0

Location

• rx.js

Rx.CompositeDisposable.prototype.remove(item)

# Ⓢ

Removes and disposes the first occurrence of a disposable from the CompositeDisposable.

参数

1. item (Disposable): Disposable to remove.

返回值

(Boolean): true if the disposable was found and disposed; otherwise, false.

例

var disposables = new Rx.CompositeDisposable();

var d1 = Rx.Disposable.create(() => console.log('one'));

disposables.add(d1);

console.log(disposables.remove(d1));
// => true

Location

• rx.js

Rx.CompositeDisposable.prototype.rxcompositedisposableprototypetoarray()

# Ⓢ

Converts the existing CompositeDisposable to an array of disposables

返回值

(Array): An array of disposable objects.

例

var d1 = Rx.Disposable.create(() => console.log('one'));

var d2 = Rx.Disposable.create(() => console.log('two'));

var disposables = new Rx.CompositeDisposable(d1, d2);

var array = disposables.toArray();

console.log(array.length);
// => 2

Location

• rx.js

CompositeDisposable Instance Properties

isDisposed

# Ⓢ

Gets a value that indicates whether the object is disposed.

例

var disposables = new Rx.CompositeDisposable();

var d1 = Rx.Disposable.create(() => console.log('disposed'));

disposables.add(d1);

console.log(disposables.isDisposed);
// => false

disposables.dispose();
// => disposed

console.log(disposables.isDisposed);
// => true

Location

• rx.js

length

# Ⓢ

Gets the number of disposables in the CompositeDisposable.

例

var disposables = new Rx.CompositeDisposable();

var d1 = Rx.Disposable.create(() => console.log('disposed'));

disposables.add(d1);

console.log(disposables.length);
// => 1

disposables.dispose();
// => disposed

console.log(disposables.length);
// => 0

Location

• rx.js