JSObjectUnsafeUtilExtension extension

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

See the JavaScript specification for more details on using properties.

on

Methods

callMethod<R extends JSAny?>(JSAny method, [JSAny? arg1, JSAny? arg2, JSAny? arg3, JSAny? arg4]) → R
Calls method on this JSObject with up to four arguments.
callMethodVarArgs<R extends JSAny?>(JSAny method, [List<JSAny?>? arguments]) → R
Calls method on this JSObject with a variable number of arguments.
delete(JSAny property) → JSBoolean
Deletes the property with key property from this JSObject.
getProperty<R extends JSAny?>(JSAny property) → R
The value of the property key property of this JSObject.
has(String property) → bool
Shorthand helper for hasProperty to check whether this JSObject contains the property key property, but takes and returns a Dart value.
hasProperty(JSAny property) → JSBoolean
Whether or not this JSObject contains the property key property.
setProperty(JSAny property, JSAny? value) → void
Write the value of property key property of this JSObject.

Operators

operator [](String property) → JSAny?
Shorthand helper for getProperty to get the value of the property key property of this JSObject, but takes and returns a Dart value.
operator []=(String property, JSAny? value) → void
Shorthand helper for setProperty to write the value of the property key property of this JSObject, but takes a Dart value.