JSObjectUnsafeUtilExtension extension - dart:js_interop_unsafe library (original) (raw)

Utility methods to check, get, set, and call properties on a JSObject.

See the JavaScript specificationfor more details on using properties.

on

• JSObject

Methods

callMethod<R extends JSAny?>(JSAny method, [JSAny? arg1, JSAny? arg2, JSAny? arg3, JSAny? arg4])→ R

Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension

Calls method on 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

Calls method on this JSObject with a variable number of arguments.

delete(JSAny property)→ JSBoolean

Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension

Deletes the property with key property from this JSObject.

getProperty<R extends JSAny?>(JSAny property)→ R

Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension

The value of the property key property of this JSObject.

has(String property)→ bool

Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension

Shorthand helper for hasProperty to check whether this JSObjectcontains the property key property, 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 key property.

setProperty(JSAny property, JSAny? value)→ void

Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension

Write the value of property key property of this JSObject.

Operators

operator [](String property)→ JSAny?

Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension

Shorthand helper for getProperty to get the value of the property keyproperty of this JSObject, but takes and returns a Dart value.

operator []=(String property, JSAny? value)→ void

Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension

Shorthand helper for setProperty to write the value of the property key property of this JSObject, but takes a Dart value.