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Editorial Team
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Asked: 2026-05-15T11:24:04+00:00

Very common scenario using Ajax is to parse the response and create the user

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Very common scenario using Ajax is to parse the response and create the user interface for end user. I am still new bee to the Ajax and UI words and I only see two choices to create the UI using Ajax (JSON/XML)response ,

  1. CreateElement() way and go on adding/removing elements dynamically
  2. Create big string and set innerHTML of some element

Now I have following question:

  1. Please let me know in case there is something else better choice to do so ?

  2. In case I would like to attach event to dynamically created elements what is the better way to do that? I mean in many cases I end up doing something like

    <input onclick=”somefunction()” />

Which I really feel bad doing and does cause issue and headaches.

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1 Answer

  1. Editorial Team

    I dont see anything wrong with those two approaches . However setting the innerHTML is better from performance point of view .
    In some cases creating the elements dynamically is the only option , you might want to take a look at documentFragment to avoid a lot of reflows ( again for performance reason ) .

    ECMA specifies addEventListener to add listeners dynamically to your elements . You would also want to read about event bubbling .

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