What is a simple method for retrieving a tag name?
For instance, if I input $('a') into a function, how can I extract the tag name 'a'?
What is a simple method for retrieving a tag name?
For instance, if I input $('a') into a function, how can I extract the tag name 'a'?
To determine the tag name, you can use the .prop("tagName") method. Here are some examples:
jQuery("<a>").prop("tagName"); //==> "A"
jQuery("<h1>").prop("tagName"); //==> "H1"
jQuery("<coolTagName999>").prop("tagName"); //==> "COOLTAGNAME999"
If typing out .prop("tagName") every time is too much work, you can create a personalized function like this:
jQuery.fn.tagName = function() {
return this.prop("tagName");
};
Here are some usage examples:
jQuery("<a>").tagName(); //==> "A"
jQuery("<h1>").tagName(); //==> "H1"
jQuery("<coolTagName999>").tagName(); //==> "COOLTAGNAME999"
Keep in mind that tag names are typically returned in CAPITAL LETTERS. If you prefer them to be all lowercase, you can modify the custom function like this:
jQuery.fn.TagNameLowerCase = function() {
return this.prop("tagName").toLowerCase();
};
Usage examples for this variant:
jQuery("<a>").tagNameLowerCase(); //==> "a"
jQuery("<h1>").tagNameLowerCase(); //==> "h1"
jQuery("<coolTagName999>").tagNameLowerCase(); //==> "cooltagname999"
To access the nodeName property of a DOM element, you can utilize the following syntax:
document.querySelector('#elementID').nodeName;
Starting from jQuery 1.6, it is recommended to use the prop method:
$target.prop("tagName")
More information can be found at http://api.jquery.com/prop/
For jQuery version 1.6 and above
jQuery('selector').prop("tagName").toLowerCase()
For older versions of jQuery
jQuery('selector').attr("tagName").toLowerCase()
The use of toLowerCase() is optional.
Here is an alternative approach:
document.querySelector('selector').tagName
Avoid using jQuery('selector').attr("tagName").toLowerCase(), as it is only compatible with older versions of jQuery.
Instead, you may opt for
$('selector').prop("tagName").toLowerCase()Although it may seem like everyone has upgraded to jQuery 1.10+ as of January 2016, this is not the reality. For instance, a considerable number of users are still reliant on Drupal 7, and jQuery 1.4.4 remains the default option within every official Drupal 7 release.
If the jQuery version for your project is uncertain, consider utilizing one of these options which are compatible with ALL jQuery versions:
Solution 1 :
jQuery('selector')[0].tagName.toLowerCase()
Solution 2
jQuery('selector')[0].nodeName.toLowerCase()
When using nodeName, the tag name will be in uppercase, whereas localName will provide it in lower case.
$("yourelement")[0].localName
For example, this code snippet will return "yourelement" instead of "YOURELEMENT".
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