create table using javascript

**mattastic** · 03-20-2007 02:07 PM

Hi Folks,

I have the function below which creates a basic 3 row, 2 cell table. Could anyone tell me how I can create the table below, using my function?

Thankyou

HTML Code:

<table width="75%" border="1">
  <tr>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
  </tr>
  <tr>
    <td>&nbsp;</td>
    <td rowspan="2">&nbsp;</td>
  </tr>
  <tr>
    <td>&nbsp;</td>
  </tr>
</table>

Code:

  function start() {
        // get the reference for the body
        var body = document.getElementsByTagName("body")[0];

        // creates a <table> element and a <tbody> element
        var tbl     = document.createElement("table");
        var tblBody = document.createElement("tbody");

        // creating all cells
        for (var j = 0; j <= 2; j++) {
            // creates a table row
            var row = document.createElement("tr");

            for (var i = 0; i < 2; i++) {
                // Create a <td> element and a text node, make the text
                // node the contents of the <td>, and put the <td> at
                // the end of the table row
			 var cell = document.createElement("td");    
				  var cellText = document.createTextNode("cell is row "+j+", column "+i);

			
				
				
              
            
                cell.appendChild(cellText);
                row.appendChild(cell);
            }

            // add the row to the end of the table body
            tblBody.appendChild(row);
        }

        // put the <tbody> in the <table>
        tbl.appendChild(tblBody);
        // appends <table> into <body>
        body.appendChild(tbl);
        // sets the border attribute of tbl to 2;
        tbl.setAttribute("border", "2");
    }

**Kor** · 03-20-2007 02:57 PM

Code:

function start(){
var root=document.getElementsByTagName('body')[0];
var oTab=document.createElement('table');
oTab.style.width='75%';
oTab.setAttribute('border','1');
var oTbo=document.createElement('tbody');
for(var i=0;i<3;i++){
	var oTr=document.createElement('tr');
	for(var j=0;j<2;j++){
		if(i==2 && j==1){break}
		else{
		var oTd=document.createElement('td');
		oTd.appendChild(document.createTextNode('\u0020'))
		i==1&&j==1?oTd.setAttribute('rowSpan','2'):null;
		oTr.appendChild(oTd)
		}
	}
	oTbo.appendChild(oTr);
}
oTab.appendChild(oTbo);
root.appendChild(oTab)
}

**mattastic** · 03-21-2007 04:08 AM

Thanks for your reply.

Could you please tell me how this piece of code works?

Code:

oTd.appendChild(document.createTextNode('\u0020'))
		i==1&&j==1?oTd.setAttribute('rowSpan','2'):null;

**Kor** · 03-21-2007 04:25 AM

Code:

oTd.appendChild(document.createTextNode('\u0020'))

'\u0020' is the unicode escape notation for the empty space ( ). In javascript the escape unicode notation is safer in case of special characters.

Code:

i==1&&j==1?oTd.setAttribute('rowSpan','2'):null;

It is a ternary operator.

condition?if_true:if_false

The long equivalent is

if(i==1&&j==1){
oTd.setAttribute('rowSpan','2');
}
else{
null;//do nothing
}

**mattastic** · 03-21-2007 06:34 AM

Thanks for you reply.

However, I cannot get this code to work, no text appars in the table cell.

Can you please help?

Thankyou

Code:

		i==1&&j==1?oTd.setAttribute('rowSpan','3')&oTd.innerHTML == "text here":null;

**mattastic** · 03-21-2007 07:17 AM

I've managed to get this to work but I'm using to seperate statements, can I combine them somehow?

Code:

			i==1&&j==1?oTd.setAttribute('rowSpan','3'):null;
			i==1&&j==1?oTd.innerHTML = "<div id='itemdiv"+index+"'><input name='button' type='button' onclick=\"addElement("+index+",document.getElementById('itemdiv"+index+"').getElementsByTagName('select').length);\" value='Add'  class='button'><input name='button' type='button' onclick=\"removeElement("+index+");\" value='Remove' class='button'><fieldset class='top'><div class='formleft'><h4 class='header'>item1</h4></div><div class='formright'><select name='item"+index+"_1' onChange=\"getProducts(this.options[this.selectedIndex].value,'subitem"+index+"_1');\" class='itempick'><cfoutput><cfloop from='1' to='#listlen(idlist)#'index='i'><option value='#ListGetAt(idlist,i)#'>#ListGetAt(titlelist,i)#</option></cfloop></cfoutput></select></div><div id='subitem"+index+"_1' class='items'></div></fieldset ></div>":null;

**Kor** · 03-21-2007 07:26 AM

No, don't use innerHTML in that case, it is not a standard DOM method, you may get trouble

Code:

<script type="text/javascript">
function start(){
var root=document.getElementsByTagName('body')[0];
var oTab=document.createElement('table');
oTab.style.width='75%';
oTab.setAttribute('border','1');
var oTbo=document.createElement('tbody');
for(var i=0;i<3;i++){
	var oTr=document.createElement('tr');
	for(var j=0;j<2;j++){
		if(i==2 && j==1){break}
		else{
		var oTd=document.createElement('td');
		if(i==1&&j==1){
		oTd.setAttribute('rowSpan','2');
		oTd.appendChild(document.createTextNode('another text'))
		}
		else{
		oTd.appendChild(document.createTextNode('some text'))
		}
		oTr.appendChild(oTd)
		}
	}
	oTbo.appendChild(oTr);
}
oTab.appendChild(oTbo);
root.appendChild(oTab)
}
onload=start
</script>

If you need to create INPUT, use also createElement() method

**mwangi** · 01-29-2013 01:07 AM

I am somewhat new to the nuances of javascript and I wondered what these two lines of yours, Mr. KOR, are doing?

oTd.appendChild(document.createTextNode('\u0020'))
i==1&&j==1?oTd.setAttribute('rowSpan','2'):null;

especially the 2nd line. Please help me understand.

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