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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() Method
The attributes getNamedItem() method returns an attribute node from a NamedNodeMap object.
JavaScript – DOM Attributes Item() Method
The attributes item() method returns an attribute, by index, from a NamedNodeMap.
JavaScript – DOM attributes.length Property
The attributes.length property returns the number of nodes in a NamedNodeMap.
JavaScript – DOM Attributes name Property
The Attributes name property returns the name of an attribute.
JavaScript – DOM Attributes removeNamedItem() Method
The attributes removeNamedItem() method removes a node, by name, in a NamedNodeMap.
JavaScript – DOM Attributes setNamedItem() Method
The attributes rsetNamedItem() method adds an attribute node to a NamedNodeMap. If the attribute node already exists, it will be replaced.
JavaScript – DOM Attributes specified Property
The Attributes specified property returns true if an attribute is specified. Otherwise it returns an error.
JavaScript – DOM Attributes value Property
The Attributes value property returns the value of an attribute.
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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)
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