Home>Article>Web Front-end> How to use JavaScript to complete the linkage effect of provinces and cities
Province and city linkage effect
[DOM operations in HTML]
Some commonly used HTML DOM methods:
getElementById(id) - Get the node (element) with the specified id
appendChild(node) - Insert a new child node (element)
removeChild(node) - Remove the child node (element)
Some commonly used HTML DOM attributes:
innerHTML - the text value of the node (element)
parentNode - the parent node of the node (element)
childNodes - the node (element) )'s child node
attributes - the attribute node of the node (element)
Find the node:
getElementById() Returns the element with the specified ID.
getElementsByTagName() Returns a node list (collection/node array) containing all elements with the specified tag name.
getElementsByClassName() Returns a node list containing all elements with the specified class name.
Add node:
createAttribute() creates an attribute node.
createElement() Creates an element node.
createTextNode() Creates a text node.
insertBefore() Inserts a new child node before the specified child node.
appendChild() Adds a new child node to the specified node.
Delete node:
removeChild() deletes the child node.
replaceChild() Replaces child nodes.
Modify node:
setAttribute() Modify attribute
setAttributeNode() Modify attribute node
Code implementation
Related recommendations: "javascript advanced tutorial"
The above is the detailed content of How to use JavaScript to complete the linkage effect of provinces and cities. For more information, please follow other related articles on the PHP Chinese website!