Creating a table dynamically using Javascript

Question

I am trying to create a table dynamically as soon as a page loads. In the code below, I get a response when I click the button, but the table is not displayed on the page. What's wrong with the code below? I have looked at other discussion threads on this topic, but none have helped.

The code in the Javascript file is as follows:

    function showalert() {
            alert('what?');
    }

    function displayGuides() {
            var mgdCell, mgdRow, mgdTable;

      mgdTable = document.createElement('table');
      mgdRow = mgdTable.insertRow(0);
      mgdCell = mgdRow.insertCell(0);
      mgdCell.innerHTML = "1111";
      mgdCell = mgdRow.insertCell(1);
      mgdCell.innerHTML = "2222";
      mgdCell = mgdRow.insertCell(2);
      mgdCell.innerHTML = "3333";
      mgdCell = mgdRow.insertCell(3);
      mgdCell.innerHTML = "4444";
      mgdCell = mgdRow.insertCell(4);
      mgdCell.innerHTML = "5555";
      document.getElementByID('mgdTable').appendChild(mgdTable);
    }

    function mgdUserActions() {
      var create = document.getElementById('create');
      create.onclick = showalert;
      displayGuides();
    }

    window.onload = mgdUserActions;

always check your javascript console for errors please, and post those errors if u get any. ok, now i got it right: just change displayTable; to displayTable(); — x4rf41
– x4rf41, Commented Jun 13, 2013 at 14:36
Well, for one, this isn't the best way to build a table dynamically. Try using templates, like Mustache or Handlebars. — Joseph
– Joseph, Commented Jun 13, 2013 at 14:40
I am trying to display the table as soon as the page loads. I don't need the user to click the button to display the table. — Anil Bhat
– Anil Bhat, Commented Jun 13, 2013 at 14:41
right. i saw that too late. but your code should work as far as i can see. check your javascript console for errors if it doesn't — x4rf41
– x4rf41, Commented Jun 13, 2013 at 14:42

Ryaminal · Accepted Answer · 2013-06-13 14:43:31Z

2

Your call in displayGuides to document.getElementByID should be document.getElementById. The 'D' in ID should be 'd' Id.

Check out the fiddle of awesomeness

answered Jun 13, 2013 at 14:43

Ryaminal

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2 Comments

Anil Bhat Over a year ago

Thank you, Ryaminal. The code worked after I made the change you suggested. My Javascript coding skills are a bit rusty, and I wasted a day on debugging this :-(

Ryaminal Over a year ago

@AnilBhat Glad it worked. I found it by hitting F12 and Chrome's Developer Tools magically told me the exact problem. :)

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