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What is this Javascript code that makes it generate the table correctly in IE?

What is this source code that makes it actually generate the table in IE instead of just doing nothing.

        function generateATable()
        {
            tableContainer = document.getElementById("tableDiv");
            var tableElement = document.createElement("table");

            // Append the Table Element to the table 
            // container.
            tableContainer.appendChild(tableElement);

            // IE Requires a TBODY when dynamically generating 
            // tables.  (I thought this was it but apparently it isn't)
            var tbodyElement = document.createElement("tbody");

            // First we'll append the tbody.
            tableElement.appendChild(tbodyElement);

            var trElement1 = document.createElement("tr");

            // Next we'll append the first trElement to the 
            // tbody.
            tbodyElement.appendChild(trElement1);

            var aaCell = trElement1.insertCell(-1);
            var abCell = trElement1.insertCell(0);

            var textNodeAA = document.createTextNode("AA");
            var textNodeAB = document.createTextNode("AB");

            aaCell.appendChild(textNodeAA);
            abCell.appendChild(textNodeAB);

            tbodyElement.appendChild(trElement1);

            var baCell = trElement1.cells[0].cloneNode(false);
            var bbCell = trElement1.cells[1].cloneNode(false);

            var textNodeBA = document.createTextNode("BA");
            var textNodeBB = document.createTextNode("BB");

            trElement2 = trElement1.cloneNode(false);

            tbodyElement.appendChild(trElement2);

            baCell.appendChild(textNodeBA);
            bbCell.appendChild(textNodeBB);

            trElement2.appendChild(baCell);
            trElement2.appendChild(bbCell);

            tableElement.style.border="4px solid black";

        }

My apologies ... this is a problem with something else ... the data that created the table was not populating, votes for everyone ... sorry! ...

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4 answers 


                    tableContainer = document.getElementById("tableDiv");
                    var tableElement = document.createElement("table");

                    // Append the Table Element to the table 
                    // container.
                    tableContainer.appendChild(tableElement);

What about it. The rest actually populates the table.



We find a div in an existing HTML document called "tableDiv" and then create a <table> element and add it to tableDiv.

+7


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Creating the table that can be seen on the page has two steps, creating the node table:

var tableElement = document.createElement("table");


... and adding it as a child of the node that is in the document:

tableContainer = document.getElementById("tableDiv");
tableContainer.appendChild(tableElement);
+4


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document.createElement("table")
  ...
tableContainer.appendChild(tableElement);

This adds the element to the DOM.

+2


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I'm not sure why you are doing everything that answered correctly. Do you want a step-by-step description of what the code does?

function generateATable() {
    /* obtain a reference to a div */
    tableContainer = document.getElementById("tableDiv");
    /* create a table element */
    var tableElement = document.createElement("table");

    // Append the Table Element to the table 
    // container.
    /* append the table element to the div */
    tableContainer.appendChild(tableElement);

    // IE Requires a TBODY when dynamically generating 
    // tables.  (I thought this was it but apparently it isn't)
    /* create a tbody element */
    var tbodyElement = document.createElement("tbody");

    // First we'll append the tbody.
    /* append the tbody element to the table element */
    tableElement.appendChild(tbodyElement);

    /* create a row element */
    var trElement1 = document.createElement("tr");

    // Next we'll append the first trElement to the 
    // tbody.
    /* append the row element to the tbody element */
    tbodyElement.appendChild(trElement1);

    /* insert two cells */
    var aaCell = trElement1.insertCell(-1);
    var abCell = trElement1.insertCell(0);

    /* create two text nodes */
    var textNodeAA = document.createTextNode("AA");
    var textNodeAB = document.createTextNode("AB");

    /* append the text nodes to the cells */
    aaCell.appendChild(textNodeAA);
    abCell.appendChild(textNodeAB);

    /* append the row element to the tbody element ... again */
    tbodyElement.appendChild(trElement1);

    /* create two new cells that are shallow copies of the two cells above */
    var baCell = trElement1.cells[0].cloneNode(false);
    var bbCell = trElement1.cells[1].cloneNode(false);

    /* create two more text nodes */
    var textNodeBA = document.createTextNode("BA");
    var textNodeBB = document.createTextNode("BB");

    /* create a row element that is a shallow copy of the first row */
    trElement2 = trElement1.cloneNode(false);

    /* append the 2nd row element to the tbody element */
    tbodyElement.appendChild(trElement2);

    /* append the text nodes to the cells */
    baCell.appendChild(textNodeBA);
    bbCell.appendChild(textNodeBB);

    /* append the cells to the 2nd row element */
    trElement2.appendChild(baCell);
    trElement2.appendChild(bbCell);

    /* set the border style of the table element */
    tableElement.style.border="4px solid black";
}
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