querySelector vs getElementById

Get Element By Id

• It returns a node list which is live, meaning if you add or remove any element from the DOM the node list will update
• It is faster relative to the query selector methods

Query Selector

• It returns a node list which was available at the time of the execution

Also Read:

1. css : center element vertically and horizontally
2. Two column layout in css
3. Parse html response with fetch API
4. window vs document
5. position:fixed