Accessing Elements by Their Name with document.getElementsbyName
The getElementsByName() method of the Document object returns a NodeList Collection of elements with a given name. The syntax for this method is Document.getElementsByName(param), where "param" refers to the Name that it will search and is required as a parameter. The NodeList is an object similar to an array with properties like length and indexing beginning at 0. However, note that this method does not have full functionality like an array.
Document: getElementsByName() method
The getElementsByName() method
of the Document object returns a NodeList Collection of
elements with a given name attribute in the document.
Syntax
getElementsByName(name)
Parameters
name-
The value of the
nameattribute 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
<!doctype html>
<html lang="en">
<head>
<title>Example: using document.getElementsByName</title>
</head>
<body>
<input type="hidden" name="up" />
<input type="hidden" name="down" />
</body>
</html>
const up_names = document.getElementsByName("up");
console.log(up_names[0].tagName); // displays "INPUT"
Notes
The name attribute can only be applied in (X)HTML
documents.
The returned NodeList Collection contains all elements with the
given name, such as <meta>, <object>, and
even elements which do not support the name attribute at all.
Source: Mozilla, https://developer.mozilla.org/en-US/docs/Web/API/Document/getElementsByName
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