Can we get element by class name?
The getElementsByClassName method of Document interface returns an array-like object of all child elements which have all of the given class name(s). When called on the document object, the complete document is searched, including the root node.
How do you find an element with a specific class name?
Use the element. classList. contains() method to check if an element contains a specific class name.
Which document method takes a class name as a string and returns all the elements with the specified class name?
classList is a read-only property that returns a live DOMTokenList collection of the class attributes of the element. This can then be used to manipulate the class list. Using classList is a convenient alternative to accessing an element’s list of classes as a space-delimited string via element. className .
Can I use querySelector with class name?
Just like the querySelector() , we can use the . querySelectorAll() to get elements based on their ids or the CSS class names. Just like we select elements with the Query Selectors in the CSS style sheets.
There are 3 methods that can be used to properly loop through an HTMLCollection.
- Method 1: Using the for/of loop: The for/of loop is used to loop over values of an iterable object.
- Method 2: Using the Array.from() method to convert the HTMLCollection to an Array.
- Method 3: Using a normal for loop.
classList is a read-only property that returns a live DOMTokenList collection of the class attributes of the element. This can then be used to manipulate the class list. Using classList is a convenient alternative to accessing an element’s list of classes as a space-delimited string via element.
How do I get the document element by name?
The getElementsByName() method returns a collection of elements with a specified name. The getElementsByName() method returns a live NodeList.
How do I get the class name of an HTML element?
The class name of the elements you want to get. To search for multiple class names, separate them with spaces, like “test demo”. An HTMLCollection object, representing a collection of elements with the specified class name. The elements in the returned collection are sorted as they appear in the source code.
What is getElementsByClassName?
elements is a live HTMLCollection of found elements. getElementsByClassName can be called on any element, not only on the document. The element on which it is called will be used as the root of the search.
Further, we will call the getElementsByClassName () method on myDiv element to retrieve all the elements with a class named myText and display the alerts specifying a number of matching elements it has found. alert (“There are ” + innerElements.length + ” elements in the outerElement with class ‘myText’.”);