I want to select text by sending location/anchorOffset and length/offset using Javascript Here is my code
var node = document.getElementById("content");
var range = document.createRange();
range.setStart(node, 0);
range.setEnd(node, 4); // here 0 and 4 is my location and length for the selection
// if my string is "This is test string" in my case its must select "This"
var selection = window.getSelection();
selection.removeAllRanges();
selection.addRange(range);
But the issue is with range.setStart and range.setEnd its not working as I expect
The setStart()
and setEnd()
methods of DOM Range are well specified, so you could find the answer by reading the spec or MDN .
To summarise, if you want to specify a range boundary in terms of character offsets, you need to deal with a text node rather than an element. If your element contains a single text node, changing the first line of your code to the following will work:
var node = document.getElementById("content").firstChild;
Here's a good solution if you're trying to select a jquery result set
var $newSelection = $('.someElements');
var selection = window.getSelection();
var range = document.createRange();
range.setStartBefore($newSelection.first()[0]);
range.setEndAfter($newSelection.last()[0]);
selection.removeAllRanges();
selection.addRange(range);
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