How does jquery query the last child element
This article introduces the knowledge of "how to query the last child element of jquery". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!
Two methods: 1, using children () and ": last-child" selector, syntax "$(parent element). Children (": last-child ")". 2. With children () and eq (), the syntax "$(parent element). Children (). Eq (- 1)".
The operating environment of this tutorial: windows7 system, jquery1.10.2 version, Dell G3 computer.
Two methods of querying the Last Child element in jquery
Method 1: use the children () and: last-child selector
Use children () to get all direct child elements under the specified parent node
Use: last-child to select the last element in the child element collection, that is, the last child element
Example:
$(function () {$("button") .click (function () {$("ul"). Children (": last-child") .css ("color", "red") }) the last child element of the parent element ul of banana, apple, pear, orange
Method 2: use children () and eq ()
Use children () to get all direct child elements under the specified parent node
Use eq (- 1) to select the last element in the child element set, that is, the last child element
On the basis of the above example, modify:
$(function () {$("button") .click (function () {$("ul"). Children (). Eq (- 1). Css ("color", "red");})})
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