Initial commit, description and example of setAttribute()

content/javascript/concepts/dom-manipulation/terms/setattribute/setattribute.md

@@ -0,0 +1,31 @@
+---
+Title: 'setAttribute()' 
+Description: 'Sets the attribute of a specified element.'
+Subjects: 
+  - 'Web Development'
+  - 'Web Design'
+  - 'An nth subject name'
+Tags: # Please only use Tags in the tags.md file (https://github.com/Codecademy/docs/blob/main/documentation/tags.md). If that list feels insufficient, feel free to create a new Tag and add it to tags.md in your PR!
+  - 'Attributes'
+CatalogContent: 
+  - 'introduction-to-javascript'
+  - 'paths/front-end-engineer-career-path'
+---
+
+The **`.setAttribute()`** method of the Element interface sets the value of an attribute on the specified element. If the attribute already exists, the value is updated; otherwise a new attribute is added with the specified name and value.
+
+## Syntax
+
+```pseudo
+setAttribute(name, value);
+```
+
+## Example
+
+This example sets the name of a button to 'helloButton'.
+
+```js
+const button = document.querySelector("button");
+
+button.setAttribute("name","helloButton");
+```