javascript - Can't surroundContents with range set.Start set.setEnd - Stack Overflow

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I need to surround multiple words with spans, I know startIndex and endIndex for each word (I'm sure no word will be spanning in multiple tags and all the words are in the same element) I can't even select the first word, I get "IndexSizeError: Index or size is negative or greater than the allowed amount" and similar error with rangy ( / ) what am I doing wrong?

var range = document.createRange();
startNode = document.getElementById("texttocheck");

range.setStart(startNode, 0);
range.setEnd(startNode, 4);

var newNode = document.createElement("span");
range.surroundContents(newNode);

here is the fiddle: /

I need to surround multiple words with spans, I know startIndex and endIndex for each word (I'm sure no word will be spanning in multiple tags and all the words are in the same element) I can't even select the first word, I get "IndexSizeError: Index or size is negative or greater than the allowed amount" and similar error with rangy ( http://jsfiddle/pastrocchio/hgugQ/7/ ) what am I doing wrong?

var range = document.createRange();
startNode = document.getElementById("texttocheck");

range.setStart(startNode, 0);
range.setEnd(startNode, 4);

var newNode = document.createElement("span");
range.surroundContents(newNode);

here is the fiddle: http://jsfiddle/pastrocchio/hgugQ/3/

• javascript
• range

Share Improve this question Follow edited Apr 22, 2013 at 10:53 chickpeas asked Apr 22, 2013 at 10:45 chickpeaschickpeas 44355 silver badges1616 bronze badges 2

• Are you only trying to select the first word or all of them? Do you have to use createRange() or can you use a different approach? – Derek Henderson Commented Apr 22, 2013 at 11:18
• some of them: the wrong ones, it will be a spellcheck – chickpeas Commented Apr 22, 2013 at 11:27

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1 Answer 1

Sorted by: Reset to default 11

I figured it out, I was missing startnode.firstChild

var range = document.createRange();
startNode = document.getElementById("texttocheck");

range.setStart(startNode.firstChild, 0);
range.setEnd(startNode.firstChild, 4);

var newNode = document.createElement("span");
range.surroundContents(newNode);

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