jQuery中的closest()和parents()的差别
jQuery中closest()和parents()的作用非常类似，都是向上寻找符合选择器条件的元素，可是他们之间有一些细微的差别，官网也给出了说明：
| .closest() | .parents() |
|---|---|
| Begins with the current element | Begins with the parent element |
| Travels up the DOM tree until it finds a match for the supplied selector | Travels up the DOM tree to the document’s root element, adding each ancestor element to a temporary collection; it then filters that collection based on a selector if one is supplied |
| The returned jQuery object contains zero or one element for each element in the original set, in document order | The returned jQuery object contains zero or more elements for each element in the original set, in reverse document order |
以上介绍的非常清楚，closest()从当前元素開始找，找到一个符合条件的对象后就返回，而parents()则是从父元素開始向上找，一直到文档根节点。返回全部符合条件的jQuery元素对象。
时间： 2024-10-26 18:08:43