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Editorial Team
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Asked: 2026-06-18T04:08:00+00:00

I am new to javascript (mostly work on backend) but now I want to

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I am new to javascript (mostly work on backend) but now I want to create a visualization and want to use javascript for it.

I have data saved in a file in format

id1 uid1 rating
id1 uid2 rating2

Just to get started, I want to read data from this file and display it on my browser?
Do I need to start server.. or can i do it just like that.

Any suggestions/directions will be appreciated.
THanks

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1 Answer

  1. Editorial Team

    you need to learn about ajax,and deal with browser differences. A way that would work on firefox and chrome would be :

      <body>
  <div id="log"></div>
    <script type="text/javascript">
    var request = new XMLHttpRequest();//depends on the browser , several ways to create the object
    request.onreadystatechange = function(e){
      if(request.readyState == 4 && request.status==200){
        // do whatever you need with the data
        document.getElementById("log").innerText = request.responseText;
      }
    }
    // assuming the file is called data and is located on current-path-on-server/data
    request.open("GET","data",true);
    request.send();
  </script>  
  </body>

    more about it :

    https://developer.mozilla.org/en-US/docs/AJAX/Getting_Started

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