WritableStreamDefaultWriter extension type
The WritableStreamDefaultWriter interface of the
Streams API
is the object returned by WritableStream.getWriter and once created locks
the writer to the WritableStream ensuring that no other streams can write
to the underlying sink.
API documentation sourced from MDN Web Docs.
- on
- Implemented types
- Available extensions
Constructors
- WritableStreamDefaultWriter(WritableStream stream)
-
factory
Properties
- asString → String
-
Available on JSAny, provided by the JSAnyExtension extension
no setter - asString → String?
-
Available on JSAny?, provided by the JSAnyNullableExtension extension
no setter -
closed
→ JSPromise<
JSAny?> -
The
closedread-only property of the WritableStreamDefaultWriter interface returns aPromisethat fulfills if the stream becomes closed, or rejects if the stream errors or the writer's lock is released.no setter - desiredSize → double?
-
The
desiredSizeread-only property of the WritableStreamDefaultWriter interface returns the desired size required to fill the stream's internal queue.no setter -
entries
→ Iterable<
MapEntry< String, dynamic> > -
Available on JSObject, provided by the JSObjectExtension extension
no setter - hashCode → int
-
The hash code for this object.
no setterinherited
- isDefinedAndNotNull → bool
-
Available on JSAny?, provided by the NullableUndefineableJSAnyExtension extension
no setter - isElement → bool
-
Available on JSObject?, provided by the JSObjectWebExtension extension
no setter - isHTMLElement → bool
-
Available on JSObject?, provided by the JSObjectWebExtension extension
no setter - isNode → bool
-
Available on JSObject?, provided by the JSObjectWebExtension extension
no setter - isNull → bool
-
Available on JSAny?, provided by the NullableUndefineableJSAnyExtension extension
Whether this value corresponds to JavaScriptnull.no setter - isTruthy → JSBoolean
-
Available on JSAny?, provided by the JSAnyOperatorExtension extension
The result of!!in JavaScript.thisno setter - isUndefined → bool
-
Available on JSAny?, provided by the NullableUndefineableJSAnyExtension extension
Whether this value corresponds to JavaScriptundefined.no setter - isUndefinedOrNull → bool
-
Available on JSAny?, provided by the NullableUndefineableJSAnyExtension extension
no setter -
keys
→ Iterable<
String> -
Available on JSObject, provided by the JSObjectExtension extension
no setter - not → JSBoolean
-
Available on JSAny?, provided by the JSAnyOperatorExtension extension
The result of!in JavaScript.thisno setter -
ready
→ JSPromise<
JSAny?> -
The
readyread-only property of the WritableStreamDefaultWriter interface returns aPromisethat resolves when the desired size of the stream's internal queue transitions from non-positive to positive, signaling that it is no longer applying backpressure.no setter - runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
abort(
[JSAny? reason]) → JSPromise< JSAny?> -
The
abort()method of the WritableStreamDefaultWriter interface aborts the stream, signaling that the producer can no longer successfully write to the stream and it is to be immediately moved to an error state, with any queued writes discarded. -
add(
JSAny? any) → JSAny -
Available on JSAny?, provided by the JSAnyOperatorExtension extension
The result ofin JavaScript.this+any -
and(
JSAny? any) → JSAny? -
Available on JSAny?, provided by the JSAnyOperatorExtension extension
The result ofin JavaScript.this&&any -
as<
T extends JSObject> () → T? -
Available on JSObject, provided by the JSObjectExtension extension
-
callMethod<
R extends JSAny?> (JSAny method, [JSAny? arg1, JSAny? arg2, JSAny? arg3, JSAny? arg4]) → R -
Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension
Callsmethodon this JSObject with up to four arguments. -
callMethodVarArgs<
R extends JSAny?> (JSAny method, [List< JSAny?> ? arguments]) → R -
Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension
Callsmethodon this JSObject with a variable number ofarguments. -
close(
) → JSPromise< JSAny?> -
The
close()method of the WritableStreamDefaultWriter interface closes the associated writable stream. -
dartify(
) → Object? -
Available on JSAny?, provided by the JSAnyUtilityExtension extension
Converts a JavaScript JSON-like value to the Dart equivalent if possible. -
delete(
JSAny property) → JSBoolean -
Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension
Deletes the property with keypropertyfrom this JSObject. -
divide(
JSAny? any) → JSAny -
Available on JSAny?, provided by the JSAnyOperatorExtension extension
The result ofin JavaScript.this/any -
equals(
JSAny? any) → JSBoolean -
Available on JSAny?, provided by the JSAnyOperatorExtension extension
The result ofin JavaScript.this==any -
exponentiate(
JSAny? any) → JSAny -
Available on JSAny?, provided by the JSAnyOperatorExtension extension
The result ofin JavaScript.this**any -
get(
String key) → Object? -
Available on JSObject, provided by the JSObjectExtension extension
-
getProperty<
R extends JSAny?> (JSAny property) → R -
Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension
The value of the property keypropertyof this JSObject. -
greaterThan(
JSAny? any) → JSBoolean -
Available on JSAny?, provided by the JSAnyOperatorExtension extension
The result ofin JavaScript.this>any -
greaterThanOrEqualTo(
JSAny? any) → JSBoolean -
Available on JSAny?, provided by the JSAnyOperatorExtension extension
The result ofin JavaScript.this>=any -
has(
String property) → bool -
Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension
Shorthand helper for hasProperty to check whether this JSObject contains the property keyproperty, but takes and returns a Dart value. -
hasProperty(
JSAny property) → JSBoolean -
Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension
Whether or not this JSObject contains the property keyproperty. -
instanceof(
JSFunction constructor) → bool -
Available on JSAny?, provided by the JSAnyUtilityExtension extension
Whether thisJSAny?is aninstanceofconstructor. -
instanceOfString(
String constructorName) → bool -
Available on JSAny?, provided by the JSAnyUtilityExtension extension
Whether thisJSAny?is aninstanceofthe constructor that is defined byconstructorName, which is looked up in the globalContext. -
isA<
T extends JSAny?> () → bool -
Available on JSAny?, provided by the JSAnyUtilityExtension extension
Whether thisJSAny?is an instance of the JavaScript type that is declared byT. -
lessThan(
JSAny? any) → JSBoolean -
Available on JSAny?, provided by the JSAnyOperatorExtension extension
The result ofin JavaScript.this<any -
lessThanOrEqualTo(
JSAny? any) → JSBoolean -
Available on JSAny?, provided by the JSAnyOperatorExtension extension
The result ofin JavaScript.this<=any -
modulo(
JSAny? any) → JSAny -
Available on JSAny?, provided by the JSAnyOperatorExtension extension
The result ofin JavaScript.this%any -
multiply(
JSAny? any) → JSAny -
Available on JSAny?, provided by the JSAnyOperatorExtension extension
The result ofin JavaScript.this*any -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
notEquals(
JSAny? any) → JSBoolean -
Available on JSAny?, provided by the JSAnyOperatorExtension extension
The result ofin JavaScript.this!=any -
or(
JSAny? any) → JSAny? -
Available on JSAny?, provided by the JSAnyOperatorExtension extension
The result ofin JavaScript.this||any -
put(
Object key, Object? value) → void -
Available on JSObject, provided by the JSObjectExtension extension
-
releaseLock(
) → void -
The
releaseLock()method of the WritableStreamDefaultWriter interface releases the writer's lock on the corresponding stream. After the lock is released, the writer is no longer active. If the associated stream is errored when the lock is released, the writer will appear errored in the same way from now on; otherwise, the writer will appear closed. -
setProperty(
JSAny property, JSAny? value) → void -
Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension
Write thevalueof property keypropertyof this JSObject. -
strictEquals(
JSAny? any) → JSBoolean -
Available on JSAny?, provided by the JSAnyOperatorExtension extension
The result ofin JavaScript.this===any -
strictNotEquals(
JSAny? any) → JSBoolean -
Available on JSAny?, provided by the JSAnyOperatorExtension extension
The result ofin JavaScript.this!==any -
subtract(
JSAny? any) → JSAny -
Available on JSAny?, provided by the JSAnyOperatorExtension extension
The result ofin JavaScript.this-any -
toMap(
) → Map< String, dynamic> -
Available on JSObject, provided by the JSObjectExtension extension
-
toString(
) → String -
A string representation of this object.
inherited
-
typeofEquals(
String typeString) → bool -
Available on JSAny?, provided by the JSAnyUtilityExtension extension
Whether the result oftypeofon thisJSAny?istypeString. -
unsignedRightShift(
JSAny? any) → JSNumber -
Available on JSAny?, provided by the JSAnyOperatorExtension extension
The result ofin JavaScript.this>>>any -
write(
[JSAny? chunk]) → JSPromise< JSAny?> -
The
write()method of the WritableStreamDefaultWriter interface writes a passed chunk of data to a WritableStream and its underlying sink, then returns aPromisethat resolves to indicate the success or failure of the write operation.
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
-
operator [](
String property) → JSAny? -
Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension
Shorthand helper for getProperty to get the value of the property keypropertyof this JSObject, but takes a Dart value. -
operator []=(
String property, JSAny? value) → void -
Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension
Shorthand helper for setProperty to write thevalueof the property keypropertyof this JSObject, but takes a Dart value.