Jquery
Jquery
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ID selector ("#id")

ID Selector (“#id”)

id selector

Description: Selects a single element with the given id attribute.

  • version added: 1.0jQuery( "#id" )

    id: An ID to search for, specified via the id attribute of an element.

For id selectors, jQuery uses the JavaScript function document.getElementById(), which is extremely efficient. When another selector is attached to the id selector, such as h2#pageTitle, jQuery performs an additional check before identifying the element as a