jQuery: how to change tag name?

Question

jQuery: how to change tag name?

For example:

    $1

I need

    $1

<         


        

Answer 1

JS to change the tag name

/**
 * This function replaces the DOM elements's tag name with you desire
 * Example:
 *        replaceElem('header','ram');
 *        replaceElem('div.header-one','ram');
 */
function replaceElem(targetId, replaceWith){
  $(targetId).each(function(){
    var attributes = concatHashToString(this.attributes);
    var replacingStartTag = '<' + replaceWith + attributes +'>';
    var replacingEndTag = '</' + replaceWith + '>';
    $(this).replaceWith(replacingStartTag + $(this).html() + replacingEndTag);
  });
}
replaceElem('div','span');

/**
 * This function concats the attributes of old elements
 */
function concatHashToString(hash){
  var emptyStr = '';
  $.each(hash, function(index){
    emptyStr += ' ' + hash[index].name + '="' + hash[index].value + '"';
  });
  return emptyStr;
}

Related fiddle is in this link

Answer 2

You could go a little basic. Works for me.

var oNode = document.getElementsByTagName('tr')[0];

var inHTML = oNode.innerHTML;
oNode.innerHTML = '';
var outHTML = oNode.outerHTML;
outHTML = outHTML.replace(/tr/g, 'div');
oNode.outerHTML = outHTML;
oNode.innerHTML = inHTML;

Answer 3

Jquery plugin to make "tagName" editable :

(function($){
    var $newTag = null;
    $.fn.tagName = function(newTag){
        this.each(function(i, el){
            var $el = $(el);
            $newTag = $("<" + newTag + ">");

            // attributes
            $.each(el.attributes, function(i, attribute){
                $newTag.attr(attribute.nodeName, attribute.nodeValue);
            });
            // content
            $newTag.html($el.html());

            $el.replaceWith($newTag);
        });
        return $newTag;
    };
})(jQuery);

See : http://jsfiddle.net/03gcnx9v/3/

Answer 4

The above solutions wipe out the existing element and re-create it from scratch, destroying any event bindings on children in the process.

short answer: (loses 's attributes)

$("p").wrapInner("<div/>").children(0).unwrap();

longer answer: (copies 's attributes)

$("p").each(function (o, elt) {
  var newElt = $("<div class='p'/>");
  Array.prototype.slice.call(elt.attributes).forEach(function(a) {
    newElt.attr(a.name, a.value);
  });
  $(elt).wrapInner(newElt).children(0).unwrap();
});

fiddle with nested bindings

It would be cool to copy any bindings from the at the same time, but getting current bindings didn't work for me.

Answer 5

Where the DOM renameNode() Method?

Today (2014) no browser understand the new DOM3 renameNode method (see also W3C) check if run at your bowser: http://jsfiddle.net/k2jSm/1/

So, a DOM solution is ugly and I not understand why (??) jQuery not implemented a workaround?

pure DOM algorithm

1. createElement(new_name)
2. copy all content to new element;
3. replace old to new by replaceChild()

is something like this,

function rename_element(node,name) {
    var renamed = document.createElement(name); 
    foreach (node.attributes as a) {
        renamed.setAttribute(a.nodeName, a.nodeValue);
    }
    while (node.firstChild) {
        renamed.appendChild(node.firstChild);
    }
    return node.parentNode.replaceChild(renamed, node);
}

... wait review and jsfiddle ...

jQuery algorithm

The @ilpoldo algorithm is a good start point,

   $from.replaceWith($('<'+newname+'/>').html($from.html()));

As others commented, it need a attribute copy ... wait generic ...

specific for class, preserving the attribute, see http://jsfiddle.net/cDgpS/

See also https://stackoverflow.com/a/9468280/287948

Answer 6

You can use this function

var renameTag  = function renameTag($obj, new_tag) {
    var obj = $obj.get(0);
    var tag = obj.tagName.toLowerCase();
    var tag_start = new RegExp('^<' + tag);
    var tag_end = new RegExp('<\\/' + tag + '>$');
    var new_html = obj.outerHTML.replace(tag_start, "<" + new_tag).replace(tag_end, '</' + new_tag + '>');
    $obj.replaceWith(new_html);
};

ES6

const renameTag = function ($obj, new_tag) {
    let obj = $obj.get(0);
    let tag = obj.tagName.toLowerCase();
    let tag_start = new RegExp('^<' + tag);
    let tag_end = new RegExp('<\\/' + tag + '>$');
    let new_html = obj.outerHTML.replace(tag_start, "<" + new_tag).replace(tag_end, '</' + new_tag + '>');
    $obj.replaceWith(new_html);
};

Sample code

renameTag($(tr),'div');