It should be a map where the keys are paths that should be watched on the component andthe values are names of methods that will be invoked on the component instance.

Example

In the following example you can see a component that reacts to changesin the size of the defining element.

export default class MyComponent extends Component {    static inject: {element: Element};    static bindings = {        'element.clientHeight': 'heightChange'    };    width: number;    heightChange(height: number) {        this.width = height * 2;    }}

Values of this array represent the name of one of the component'sproperties that will be pushed to the local scope.

Example

export default class MyComponent extends Component {    static locals = ['firstName', 'lastName'];}

In general you should not make use of this at all. Your template should bein a separate file with the same name and in the same folder as your component'sTypeScript file. This feature is only for advanced usage (for example having an emptytemplate by setting this to an empty string) or rapid prototyping.