Anonymous class in Typescript
You can use anonymous objects and lambdas:
myObject.render({ getNode: () => { doSomething...; return myNode }, getTable: () => myTable});Note, the new keyword is not used.
Typescript now supports class expressions so you can make actual anonymous classes.
myObject.render( new class { getNode() { return myNode; } getTable() { .. some code... return something; } } );This has the benefit of this not being inferred to be any within the anonymous class' methods.
Here's a full code sample that works:
interface RendererCallback { getNode():HTMLElement; getTable(); } class thing { render(callback: RendererCallback) { } } var myObject = new thing(); myObject.render( { getNode() { return null; }, getTable() { } } );