Even the browser will get bored and offer you the option to kill the webpage for taking too long!Īs I said, jQuery is a powerful tool, but it should not be considered the answer to everything.Trying to get the id or name of the button that has been clicked. The jQuery version might take 30 seconds to a whole minute! That's huge! People aren't going to sit around for that. Perhaps for something particularly advanced, the optimal "pure JavaScript" solution would take one second to run. Now, that's just for one operation, over time you will have more and more stuff going on in your code. To only traverse a single level down the DOM tree (to return direct children), use the. The DOM tree: This method traverse downwards along descendants of DOM elements, all the way down to the last descendant. A descendant is a child, grandchild, great-grandchild, and so on. The "plain JavaScript" vesion is over 35 times faster than the jQuery version. The find () method returns descendant elements of the selected element. prop('tagName'), jQuery returns the tag name of the first element in the collection, so you get 'div' as a result. It will select an element if the selector's string appears anywhere within the element's. This is the most generous of the jQuery attribute selectors that match against a value.
Can be either a valid identifier or a quoted string. (this) contains the div, and when you run. version added: 1.0 jQuery ( ' attribute'value'' ) attribute: An attribute name. Syntax: selector document. .add will add an element to the current jQuery collection, in this case, (this). The JavaScript getElementsByName() method can be used to select the required element and this can be passed to a jQuery function to use it further as a jQuery object. JavaScript: 11,000k operations / second Method 2: Using JavaScript to get the element by name and pass it on to jQuery.
jQuery seems to hide the 
Get name of element jquery code#
First, the code given to you in the Accepted Answer: $("#ID").attr("name") Īnd second, the Vanilla JS version of it: document.getElementById('ID').getAttribute("name") How can I select an element by name with jQuery Ask Question Asked 14 years, 2 months ago Modified 5 months ago Viewed 2.2m times 1518 I have a table column I’m trying to expand and hide. If you are inside an event handler or other jQuery method, where the element is the pure DOM node without wrapper, you can use: Both are standard DOM. var className ('sidebar div:eq (14)').attr ('class') should do the trick. With that in mind, here are two pieces of code. After getting the element as jQuery object via other means than its class, then. Judging by the current accepted answer, I am going to assume that you were able to add an ID attribute to your element and use that to select it. To get the first matching DOM element back, call get (0) ('test').get (0) On this native element, you can call id, or any other native DOM property or function. Quite right - it's the inclusion of the context that is more important, browsers without querySelectorAll or getElementsByName (special case for using the name attribute) would use getElementsByTagname('') in sizzle making it better to use jQuery('container').find('namesomeName') than just jQuery('namesomeName') - it might not be that important given browser support for. While there is no denying that jQuery is a powerful tool, it is a really bad idea to use it for such a trivial operation as "get an element's attribute value". However, when you write ('something'), it returns a jQuery object that wraps the matching DOM element (s).
0 kommentar(er)
