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Loop code to dynamically build HTML table

Posted on 2010-08-23
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Last Modified: 2013-11-18
I would like to create a loop instead of repeating the blocks of code shown below.

Can someone show me how to use the loop index in the variable names and cell indices?

Thanks.
var cell1 = row.insertCell(0);

	var element1 = document.createElement("img");

	element1.src = imagePath + "1_tn.jpg";

	cell1.appendChild(element1);



	var cell2 = row.insertCell(1);

	var element2 = document.createElement("img");

	element2.src = imagePath + "2_tn.jpg";

	cell2.appendChild(element2);



	var cell3 = row.insertCell(2);

	var element3 = document.createElement("img");

	element3.src = imagePath + "3_tn.jpg";

	cell3.appendChild(element3);



	var cell4 = row.insertCell(3);

	var element4 = document.createElement("img");

	element4.src = imagePath + "4_tn.jpg";

	cell4.appendChild(element4);



        --ETC--

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Question by:sailing_12
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3 Comments
 
LVL 4

Accepted Solution

by:
gzmogk earned 400 total points
ID: 33507668
try using an array for the variables

var cells = new Array();
var elements = new Array();

run a for loop to run it as many times you want

for(i=0;i<NUMBER_REQUIRED;i==0{
cells[i] = row.insertCell(0);
elements[i] = document.createElement("img");
      elements[i].src = imagePath + (i+1)+"_tn.jpg";//since i starts from 0 and you require 1, hence (i+1);
      cells[i].appendChild(elements[i]);

}

hope this helps
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Author Comment

by:sailing_12
ID: 33507843
I realized I don't really need them.
function addRow(rowNum){

	var table = document.getElementById('gallery');



	var rowCount = table.rows.length;

	var row = table.insertRow(rowCount);





	for(c=0; c<7; c++){

		var cell = row.insertCell(c);

		var element = document.createElement("img");

		var imageNum = c + 1;

		element.src = imagePath + "/thumbs/" + imageNum + "_tn.jpg";

		cell.appendChild(element);

	}





}

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Author Closing Comment

by:sailing_12
ID: 33507852
Found even better solution.
0

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