How do I create an object in JavaScript, that dynamically creates a div (with style properties and an id) and appends to my html page?

Question

I'm trying to create an object in javascript that will dynamically create a line with style properties, and attach it to my page. I've seen other solutions that just create an element, but none that can be nicely fit into a single object.

Here's the code I'm trying:

 function line(pos_x, pos_y, length, width, color, num) { this = document.createElement('div'); this.style.left = pos_x + "%"; this.style.top = pos_y + "%"; this.style.length = length + "%"; this.style.width = width + "%"; this.style.backgroundColor = color; this.id = "line" + num; document.appendChild(this); } var line1 = line(10, 0, 100, 100, #2ecc71, 1); 

Answer 1

Don't set this

http://javascriptissexy.com/understand-javascripts-this-with-clarity-and-master-it/

Also, there is style.width , but no length property

To be visible, the div needs style.height > 0px

 function line(pos_x, pos_y, thickness, width, color, num) { var line = document.createElement('div'); line.style.left = pos_x + "%"; line.style.top = pos_y + "%"; line.style.height = thickness + "px"; line.style.width = width + "%"; line.style.backgroundColor = color; line.id = "line" + num; document.appendChild(line); return line; } var line1 = line(10, 0, 10, 100, #2ecc71, 1);