Detailed Explanation of jQuery Properties, Traversal, and HTML Operation Methods

JqueryAttribute traversal, HTML operations.

jQuery has powerful methods for manipulating HTML elements and attributes.

Below are some jQuery traversal functions I have compiled:

.add()	Add the element to the set of matched elements.
.andSelf()	Add the previous element set in the stack to the current set.
.children()	Obtain all child elements of each element in the matched element set.
.closest()	Start from the element itself and match up the ancestor elements level by level, returning the first matching ancestor element.
.contents()	Get the child elements of each element in the matched element set, including text and comment nodes.
.each()	Iterate over the jQuery object, executing a function for each matching element.
.end()	End the most recent filtering operation in the current chain and return the matched element set to the state before the last operation.
.eq()	Reduce the matched element set to the new element at the specified index.
.filter()	Reduce the matched element set to a new set containing elements that match the selector or return value of a matching function.
.find()	Get the descendants of each element in the current matched element set, filtered by the selector.
.first()	Reduce the matched element set to the first element in the set.
.has()	Reduce the matched element set to a set containing only the descendants of the specified elements.
.is()	Check the current matched element set against the selector; if at least one matching element exists, return true.
.last()	Reduce the matched element set to the last element in the set.
.map()	Pass each element in the current matched element set to a function, producing a new jQuery object containing the return values.
.next()	Get the immediate following sibling element of each element in the matched element set.
.nextAll()	Get all sibling elements after each element in the matched element set, filtered by the selector (optional).
.nextUntil()	Get all sibling elements after each element in the matched element set, until the element matching the selector is encountered.
.not()	Remove elements from the matched element set.
.offsetParent()	Get the first parent element used for positioning.
.parent()	Get the parent element of each element in the current matched element set, filtered by the selector (optional).
.parents()	Get the ancestor elements of each element in the current matched element set, filtered by the selector (optional).
.parentsUntil()	Get the ancestor elements of each element in the current matched element set, until the element matching the selector is encountered.
.prev()	Get the immediate preceding sibling element of each element in the matched element set, filtered by the selector (optional).
.prevAll()	Get all sibling elements before each element in the matched element set, filtered by the selector (optional).
.prevUntil()	Get all sibling elements before each element in the matched element set, until the element matching the selector is encountered.
.siblings()	Get all sibling elements of all elements in the matched element set, filtered by the selector (optional).
.slice()}	Reduce the set of matched elements to a subset within a specified range.

This is my understanding of the jQuery traversal function.

HTMLMethods for operating DOM:

The most important part of Jquery is the ability to operate DOM, jQuery provides a series of methods related to DOM, which makes it easy to access and operate elements and attributes, how to operate DOM objects: Document Object Model (DOM) DOM defines the standard for accessing HTML and XML documents: W3The C Document Object Model (DOM) is independent of the platform and language interface, allowing programmers and scripts to dynamically access and update the content, structure, and style of documents. DOM is obtained-The three simple and practical jQuery methods for DOM operations: text(), - Set or return the text content of the selected element html() - Set or return the content of the selected element (including HTML tags) val() - Set or return the value of a form field or get the attribute - attr()

The jQuery attr() method is used to get the attribute value.

Set the content of all p elements:

$(".btn1").click(function(){
 $("p").html("Hello <b>world</b>!\
});

When returning a value using this method, it will return the content of the first matched element.

$.html()

When setting a value using this method, it will override the content of all matched elements.

$.html(content)

Use a function to set the content of all matched elements.

$.html(function(index, oldcontent))

This is my understanding and opinion on jQuery attribute, traversal, and HTML operation, hoping it can be helpful to everyone.

This is the full content that the editor shares with you about the detailed explanation of the jQuery attribute, traversal, and HTML operation methods. Hope it can be a reference for everyone, and also hope everyone will support and cheer for the tutorial.

Basic Tutorial