What types of selectors are there in jQuery?

jQuery Selector
1. Basic Selector
The basic selector is the most commonly used and simplest selector in jQuery. It uses the id, class and tag name of the element. Find DOM elements.
1. ID selector #id
Description: Match an element based on the given id and return a single element (Note: In the web page, the id name cannot be repeated)
Example: $("#test" ) Select the element with the id of test
2. Class selector.class
Description: Match elements according to the given class name and return the element set
Example: $(".test") Select all classes with Element of test
3. Element selector element
Description: Match the element according to the given element name and return the element collection
Example: $("p") selects all

elements
4. *
Description: Match all elements and return the element set
Example: $("*") selects all elements
5. selector1, selector2,...,selectorN
Description: Merge the elements matched by each selector and return them together to return the merged element collection
Example: $("p,span,p.myClass") selects all

, and class A collection of elements for the

tag of myClass
2. Hierarchical selector
The hierarchical selector obtains specific elements based on hierarchical relationships.
1. Descendant selector
Example: $("p span") selects all elements in the

element (Note: the descendant selector selects all specified selected elements of the parent element, Whether it is a son or a grandchild)
2. Child selector $("parent>child")
Example: $("p>span") selects all element ; element (note: the child selector only selects the child elements directly belonging to the parent element)
3. Sibling selector $("prev+next")
Description: Select the next element immediately after the prev element. Return element set
Example: $(".one+p") selects the next

sibling element set with class one
4, sibling selector$("prev~siblings")
Description: Select all siblings elements after the prev element and return the set of elements
Example: $("#two~p") selects the set of all

sibling elements after the element with id two
three , Filter selector
1>Basic filter selector
1, :first
Description: Select the first element and return a single element
Example: $( "p:first") Selects the first

element among all

elements
2, :last
Description: Selects the last element and returns a single element
Example: $(" p:last") Selects the last

element among all

elements
3. :not(selector)
Description: Removes all elements matching the given selector and returns a collection of elements
Example: $("input:not(.myClass)") Selects elements whose class is not myClass
4, :even
Description: Selects all elements whose index is an even number, and the index starts from 0 , return the element set
5, :odd
Description: Select all elements whose index is an odd number, the index starts from 0, return the element set
6, :eq(index)
Description: Select the index equal to The element of index, the index starts from 0, returns a single element
7, :gt(index)
Description: Selects the element whose index is greater than index, the index starts from 0, returns the element collection
8, :lt( index)
Description: Select elements whose index is less than index. The index starts from 0 and returns the element collection
9. :focus
Description: Selects the content of the element currently receiving focus
2> Filter selector
1, :contains(text)
Description: Select elements containing text and return a collection of elements
Example: $("p:contains('I')" ) Select elements containing the text "I"
2, :empty
Description: Select empty elements that do not contain child elements or text elements, and return element collections
Example: $("p:empty") Select An empty

element that does not contain child elements or text elements (

)
3. :has(selector)
Description: Select the element containing the element matched by the selector , return the element collection
Example: $("p:has(p)") selects the

element containing the

element (

)
4, :parent
Description: Select elements containing child elements or text, and return element collections
Example: $("p:parent") Selects

elements containing child elements or text elements (

or

text

)
3>Visibility Filter Selector
1,: hidden
Description: Select all invisible elements and return the element collection
2, :visible
Description: Select all visible elements and return the element collection
4>Attribute filter selector ( Return the element collection)
1, [attribute]
Example: $("p[id]") Select the p element with the id attribute
2, [attribute=value]
Example :$("input[name=text]") Select the input element with name attribute equal to text
3, [attribute!=value]
Example: $("input[name!=text]") Select input elements whose name attribute is not equal to text
4, [attribute^=value]
Example: $("input[name^=text] ") Select input elements with name attributes starting with text
5, [attribute$=value]
Example: $("input[name$=text]") Select input elements with name attributes ending with text
6, [attribute*=value]
Example: $("input[name*=text]") Select the input element with name attribute containing text
7, [attribute~=value]
Example: $("input[class~=text]") Select the input element that contains text in the space-separated value of the class attribute
8, [attribute1][attribute2][attributeN]
Description: Merge Multiple attribute filter selectors
5> Form object attribute filter selectors (return element collection)
1, :enabled
Description: Select all available elements
2,: disabled
Description: Select all unavailable elements
3, :checked
Description: Select all selected elements (radio boxes, check boxes)
Example: $("input:checked" ) Select all selected elements
4, :selected
Description: Select all selected option elements (drop-down list)
Example: $("select option:selected") Select all Selected option element
4. Form selector (returns element collection, similar usage)
1.:text
Description: Select all single-line text boxes
Example: $(":text")Select all single-line text boxes
2, :password
Description: Select all password boxes
3, :button
Description: Select all buttons
4 , :checkbox
Description: Select all multi-check boxes

The above is the detailed content of What types of selectors are there in jQuery?. For more information, please follow other related articles on the PHP Chinese website!