querySelectorAll
querySelectorAll
querySelectorAll returns every element that matches a CSS selector. The result is a list-like collection, so changing the collection itself does not change the page. You still need to visit each element and update it.
This matters when a page shows repeated UI: tasks, cards, table rows, messages, or badges. A common mistake is selecting only the first match and wondering why the rest of the interface stays unchanged.
Your task: Find every open task in the list and add the is-queued class to each one. Completed tasks should keep their original classes.
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querySelectorAll
querySelectorAll returns every element that matches a CSS selector. The result is a list-like collection, so changing the collection itself does not change the page. You still need to visit each element and update it.
This matters when a page shows repeated UI: tasks, cards, table rows, messages, or badges. A common mistake is selecting only the first match and wondering why the rest of the interface stays unchanged.
Your task: Find every open task in the list and add the is-queued class to each one. Completed tasks should keep their original classes.