The error message in Aurelia with TypeScript is stating that the property 'style' is not found on the 'Element' type

Hello, I am facing some challenges with Aurelia and I am a beginner so please bear with me if this is a simple issue.

I can't seem to access the 'style' property of the 'Element' object. Here's what I have been trying:

@customAttribute('test-attr')
@autoinject
export class TestAttr {
    private element : Element ; 

    constructor( element : Element) {
        this.element = element ;

    }
    attached() {
        //now i want to get a access to 'style'
        this.element.style.color = 'red'
        //this gives a error - Element declaration doesnt contain 'style' property
    }

}

It appears that the TypeScript declaration for 'Element' does not include the 'style' property, which makes sense. However, Aurelia has its own extended version of Element causing inconsistency.

I managed to find a workaround by manually injecting Element and declaring it as HTMLElement in the class. So here is the modified code:

@customAttribute('test-attr')
@inject(Element)
export class TestAttr {
    private element : HTMLElement ; 

    constructor( element : HTMLElement) {
        this.element = element ;

    }
    attached() {
        this.element.style.color = 'red'
        //above works fine
    }
}

But ideally, I would like to use '@autoinject' because it's simpler and more elegant. Do you see anything wrong with my usage of autoinject? Or could this possibly be a bug?

Answer №1

Aurelia conveniently logs the DOM element linked to the component in the container using the identifier Element, representing the fundamental type for elements like HTMLElement and SVGElement. This feature allows you to effortlessly @inject(Element) (or use @autoinject).

It is worth noting that nothing is automatically registered with the identifier HTMLElement, resulting in a failure of the autoinject function. Despite this, your current approach involving the inject decorator seems to be the most elegant solution available.

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