How to find the parent tag in javascript

How to find the parent tag in JS: 1. Use the parentNode attribute, the syntax is "child element object.parentNode"; 2. Use the parent() or parents() method in Jquery, the syntax is "child element object.parentNode". parent()" or "child element object.parents()".

The operating environment of this tutorial: windows7 system, javascript1.8.5&&jquery2.1.1 version, Dell G3 computer.

The methods to find the parent element node are:

1. Native method--parentNode attribute

The parentNode attribute can be returned The parent node of a node.

元素.parentNode //返回元素的第一个父节点

2. Jquery method (remember to import the package)

• Element.parent() Returns the first element of the element Parent nodes

• Element.parents() Returns an array containing all parent nodes of the element

There is one below Example:

ffd43448117c1013fbeeed3f564491ad
100db36a723c770d327fc0aef2ce13b1
93f0f5c25f18dab9d176bd4f6de5d30e
    a80eb7cbb6fff8b0ff70bae37074b813
9c3bca370b5104690d9ef395f2c5f8d1
6c04bd5ca3fcae76e30b72ad730ca86d
dc6dce4a544fdca2df29d5ac0ea9906b45a2772a6b6107b401db3c9b82c049c2975f881abd041d8a9a52113a3d7608725db79b134e9f6b82c0b36e0489ee08ed54bdf357c58b8a65c66d7c19c8e4d11416b28748ea4df4d9c2150843fecfba68
b9197df398584b98b2410e5b164be7af2cacc6d41bbb37262a98f745aa00fbf0
3f1c4e4b6b16bbbd69b2ee476dc4f83a
    //原生的方法
    document.getElementById('a').parentNode //得到45a2772a6b6107b401db3c9b82c049c2节点
    //也可以这么玩
    document.getElementById('a').parentNode.parentNode //得到dc6dce4a544fdca2df29d5ac0ea9906b节点
 
    //Jquery的方法  记得导包哦
    $('#a').parent();//得到45a2772a6b6107b401db3c9b82c049c2节点
    $('#a').parent().parent();//得到dc6dce4a544fdca2df29d5ac0ea9906b节点
    $('#a').parents();//得到所有父级节点   45a2772a6b6107b401db3c9b82c049c2 ,dc6dce4a544fdca2df29d5ac0ea9906b ,6c04bd5ca3fcae76e30b72ad730ca86d ,100db36a723c770d327fc0aef2ce13b1
    $('#a').parents('body');//得到6c04bd5ca3fcae76e30b72ad730ca86d节点
2cacc6d41bbb37262a98f745aa00fbf0
36cc49f0c466276486e50c850b7e4956
73a6ac4ed44ffec12cee46588e518a5e

[Recommended learning: javascript advanced tutorial]

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