Quick Reference
This is a quick reference list of JavaScript DOM Attributes methods and properties with examples of how they are used.
- JavaScript – DOM Attributes getNamedItem() MethodThe attributes getNamedItem() method returns an attribute node from a NamedNodeMap object.
- JavaScript – DOM Attributes Item() MethodThe attributes item() method returns an attribute, by index, from a NamedNodeMap.
- JavaScript – DOM attributes.length PropertyThe attributes.length property returns the number of nodes in a NamedNodeMap.
- JavaScript – DOM Attributes name PropertyThe Attributes name property returns the name of an attribute.
- JavaScript – DOM Attributes removeNamedItem() MethodThe attributes removeNamedItem() method removes a node, by name, in a NamedNodeMap.
- JavaScript – DOM Attributes setNamedItem() MethodThe attributes rsetNamedItem() method adds an attribute node to a NamedNodeMap. If the attribute node already exists, it will be replaced.
- JavaScript – DOM Attributes specified PropertyThe Attributes specified property returns true if an attribute is specified. Otherwise it returns an error.
- JavaScript – DOM Attributes value PropertyThe Attributes value property returns the value of an attribute.
JavaScript Notes:
- When using JavaScript, single or double quotation marks are acceptable and work identically to one another; choose whichever you prefer, and stay consistent
- JavaScript is a case-sensitive language; firstName is NOT the same as firstname
- Arrays count starting from zero NOT one; so item 1 is position [0], item 2 is position [1], and item 3 is position [2] … and so on
- JavaScript variables must begin with a letter, $, or _
- JavaScript variables are case sensitive (x is not the same as X)
We’d like to acknowledge that we learned a great deal of our coding from W3Schools and TutorialsPoint, borrowing heavily from their teaching process and excellent code examples. We highly recommend both sites to deepen your experience, and further your coding journey. We’re just hitting the basics here at 1SMARTchicken.