dom range.setStart / setEnd

Question

I am trying to bold only the text hel in this fiddle http://jsfiddle.net/yarkpakv/ but it does not seem to be working, what am I doing wrong???

Answer 1

You need to visualize the DOM structure of your

element. It contains three children:

1. A text node that contains only white space.

2. The

   element which contains a text node that has the value h.

3. A text node that has the value ello.

So your range must start with the

element and ends in the ello text node, between the two l characters. Therefore:

var range = document.createRange();
var root_node = document.getElementById("test");

// Start at the `
` element.
range.setStart(root_node, 1); 

// End in the `ello` text node, between the two `l`s.
range.setEnd(root_node.childNodes[2], 2); 

var newNode = document.createElement("b");

range.surroundContents(newNode);

Here's a fiddle.

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