Selecting text in a div programmatically using position values belong to that text

Question

I have a div and there is a text in it.I want a part of that text to be selected programmatically according position value of characters.

Answer 1

Try using .html() , String.prototype.slice(). To select "llo world" call .slice() with parameters 3, 12

$("#textdiv").html(function(i, html) {
  var selected = html.slice(3, 12);
  return html.replace(new RegExp("("+selected+")"), "$1")
})

Hello world. I am a friend.