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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
Watch the following video see an example showing the different between two methods.
[youtube https://youtu.be/6Y2T5P5BsfU?t=3m2s]



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