![]() 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. But I only get an undefined message in the popup when I try to access the id or name of the button. 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. The id and class change seems to work but for some curious reason, trying to change the name of the element never works. (this) contains the div, and when you run. I've got a jQuery function that attempts to change the id, name and class attribute values of an element. 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. .add will add an element to the current jQuery collection, in this case, (this). ('img').className // it contains 'class1 class2 class3' Once you get this, just split the string as usual. Get the value from an element targeted by its name. You mentioned you thought this would get all children with the name frmsave inside the form this would only happen if there was a space or other combinator between the form and the selector, eg: ('form name'frmSave'') ('formname'frmSave'') literally means find all forms with the name frmSave, because there is no combinator involved. Get the value of an id element in jquery. It contained the names of all the classes of my element separated by blank spaces. Use jQuery to get name from element to be used for another element. The jQuery version might take 30 seconds to a whole minute! That's huge! People aren't going to sit around for that. Then I inspected my element on the DOM explorer and I saw a very nice attribute that I could use: className. Perhaps for something particularly advanced, the optimal "pure JavaScript" solution would take one second to run. To traverse all the way up to the document's root element (to return grandparents or other ancestors), use the parents () or the parentsUntil () method. ![]() The DOM tree: This method only traverse a single level up the DOM tree. Now, that's just for one operation, over time you will have more and more stuff going on in your code. The parent () method returns the direct parent element of the selected element. ![]() The "plain JavaScript" vesion is over 35 times faster than the jQuery version. jQuery seems to hide the
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