Choosing a personalized component using document selector

Currently, I am working on an application using Stenciljs and have created a custom element like this:

<custom-alert alertType="warning" alertId="warningMessage" hide>Be warned</custom-alert>

The challenge arises when attempting to select this element for manipulation with document.querySelector() or similar methods in order to add or remove the hide attribute. While it's straightforward for standard HTML elements like so:

document.querySelector('input').removeAttribute('hide');

I'm wondering how to achieve the same functionality with my custom element?

javascripttypescriptstenciljs

Answer №1

By introducing an ID attribute, I successfully achieved the desired outcome.

<personalized-message id="myMessage" messageType="info" messageId="infoText">This is important</personalized-message>

This component can now be toggled between hidden and shown status:

document.getElementById('myMessage').setAttribute('hidden', 'true');

To show it again, use:

document.getElementById('myMessage').removeAttribute('hidden');

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