Lit / Web Components: If your component adds an event listener to anything except itself or its templated DOM – for example, to Window, Document, or some element in the main DOM – you should add the listener in ..... and remove the listener in ......

Question

If your component adds an event listener to anything except itself or its templated DOM – for example, to Window, Document, or some element in the main DOM – you should add the listener in ..... and remove the listener in ......

John Pencola · Accepted Answer

connectedCallback 
and remove it in disconnectedCallback.

Lit / Web Components

If your component adds an event listener to anything except itself or its templated DOM – for example, to Window, Document, or some element in the main DOM – you should add the listener in ..... and remove the listener in ......

ConnectedCallback and remove it in disconnectedCallback.

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