jQuery selectors are used to "find" (or select) HTML elements based
on their id, classes, types, attributes, values of attributes and much
more.
All selectors in jQuery start with the dollar sign and parentheses: $().
The jQuery element selector selects elements based on the element name.
You can select all <p> elements on a page like this:
The jQuery #id selector uses the id attribute of an HTML tag to find the specific element.
An id should be unique within a page, so you should use the #id selector when you want to find a single, unique element.
To find an element with a specific id, write a hash character, followed by the id of the HTML element:
All selectors in jQuery start with the dollar sign and parentheses: $().
The jQuery element selector selects elements based on the element name.
You can select all <p> elements on a page like this:
$("p")
An id should be unique within a page, so you should use the #id selector when you want to find a single, unique element.
To find an element with a specific id, write a hash character, followed by the id of the HTML element:
$("#test")
Syntax | Description | |
---|---|---|
$("*") | Selects all elements | |
$(this) | Selects the current HTML element | |
$("p.intro") | Selects all <p> elements with class="intro" | |
$("p:first") | Selects the first <p> element | |
$("ul li:first") | Selects the first <li> element of the first <ul> | |
$("ul li:first-child") | Selects the first <li> element of every <ul> | |
$("[href]") | Selects all elements with an href attribute | |
$("a[target='_blank']") | Selects all <a> elements with a target attribute value equal to "_blank" | |
$("a[target!='_blank']") | Selects all <a> elements with a target attribute value NOT equal to "_blank" | |
$(":button") | Selects all <button> elements and <input> elements of type="button" | |
$("tr:even") | Selects all even <tr> elements | |
$("tr:odd") | Selects all odd <tr> elements |
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