Element setAttribute method Web APIs MDN MDN Web Docs
Syntax js setAttribute name value Parameters name A string specifying the name of the attribute whose value is to be set The attribute name is automatically converted to all lower case when setAttribute is called on an HTML element in an HTML document value A string containing the value to assign to the attribute
Javascript setAttribute v s element attribute value to set name , If you wish to access attributes using dot notation you need to refer to obj attributes attributeName to retrieve the attribute and obj attributes attributeName value to manipulate its value
Document getElementsByName method Web APIs MDN
Syntax js getElementsByName name Parameters name The value of the name attribute of the element s we are looking for Return value A live NodeList collection meaning it automatically updates as new elements with the same name are added to or removed from the document Examples html
HTML DOM Document getElementsByName Method W3Schools, Description The getElementsByName method returns a collection of elements with a specified name The getElementsByName method returns a live NodeList NodeList A NodeList is an array like collection list of nodes The nodes in the list can be accessed by index The index starts at 0
Selecting Elements By Name JavaScript Tutorial
Selecting Elements By Name JavaScript Tutorial, How it works First select radio buttons by name using the getElementsByName method Then transform the values of the selected radio buttons to an array The returned object of the getElementsByName is a NodeList which is an array like object not an Array object
Set Multiple Attributes For An Element In JavaScript Delft Stack
Set JavaScript MDN MDN Web Docs
Set JavaScript MDN MDN Web Docs Set objects are collections of values A value in the set may only occur once it is unique in the set s collection You can iterate through the elements of a set in insertion order
How To Find The Array Index With A Value In JavaScript
The values method of Set instances returns a new set iterator object that contains the values for each element in this set in insertion order Try it Syntax js values Parameters None Return value A new iterable iterator object Examples Using values js Set prototype values JavaScript MDN MDN Web Docs. How it works First select the submit button by its id btnRate using the getElementById method Second listen to the click event of the submit button Third get all the radio buttons using the getElementsByName and show the selected value in the output element Notice that you will learn about events like click later Element is the most general base class from which all element objects i e objects that represent elements in a Document inherit It only has methods and properties common to all kinds of elements More specific classes inherit from Element For example the HTMLElement interface is the base interface for HTML elements Similarly the SVGElement interface is the basis for all SVG elements
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