finding elements with text using jQuery

Question

I want to create an array of all the html elements within a div that contain text strings, such as

<p>some string</p>.

I don't want to get hold of the strings, I want the array items to be the elements (in the example, would be the p node). I do not know before hand what the strings will be, so I can't look for string values to match. I also don't want empty text nodes to end up in the array.

Thanks!

Answer 1

You could cycle through the children and grab everything that has a .text() value != ""

Answer 2

d is the div under which you want to find things
v is an empty array
i you have to start out at 0.

The $.trim is used so that you don't get nodes that are just whitespace.

$("*",d).filter( function() { 
     return $.trim($(this).text()) != ""
  } ).each( function() { 
     v[i] = $(this).text(); 
     i++; 
  } );

One can also use v.push($(this))...which is something that totally slipped my mind.

Answer 3

var array = [];
var divSelector = "div.mine";

$(divSelector).contents().each(function()
{
   // If not an element, go to next node.
   if (this.nodeType != 1) return true;       

   var element = $(this);
   if ($.trim(element.text()) != "")
     array.push(element);
});

array is the array of elements that have some text in them.

Answer 4

 $(function() {
        var array = new Array();
        $("#testDiv *").each(function(x, el) {

            if ($.trim($(el).text()) != '' ) {
                array.push(el);
            }
        });
        alert(array.length);
    });

Answer 5

You can make use of not and the empty selectors to get the non-empty elements while converting to an array can be achieved using get

$("#theDiv > :not(:empty)").get();

The above selector gets all the children elements of "theDiv" and that aren't empty (i.e. they either have children or text) and then converts the matched set to an array.

If you want only elements that have text inside them, this should work...

$("#theDiv > :not(:empty, :has(*))").get();

To get rid of elements that have whitespace you can make use of filter

$("#theDiv > :not(:has(*))").filter(function() { 
                 return $.trim(this.innerHTML).length > 0;
         }).get();

Answer 6

A custom selector could be helpful in your case:

jQuery.expr[':'].hasText = function(element, index) {
     // if there is only one child, and it is a text node
     if (element.childNodes.length == 1 && element.firstChild.nodeType == 3) {
        return jQuery.trim(element.innerHTML).length > 0;
     }
     return false;
};

After that, you can simply do this:

$('#someDiv :hasText') // will contain all elements with text nodes (jQuery object)
$('#someDiv :hasText').get() // will return a regular array of plain DOM objects

I am assuming that you are only trying to select elements that have ONLY text inside of them.

Answer 7

Use the :contains selector:

var matches = new Array();
$('#start_point *:contains(' + text + ')').each(function(i, item) {
 matches.push( item );
}

Answer 8

$("#my_div *").filter(function()
{
     var $this = $(this);
     return $this.children().length == 0 && $.trim($this.text()).length > 0;
})

This version will not return parent elements that contains the elements having texts, only the last level elements.

May not be the fastest but works quite well on StackOverflow homepage :)

Answer 9

Would any of these options work to find form inputs that have no value? Or say a value that is an empty string?