If you want to use the attributes or methods of the html element itself, you need to use this. If you want to use the methods or attributes wrapped by jQuery, you need $(this). Generally, there is the following relationship.
$(this)[0] == this;
top The code in this article is to use this to call the reset method of the form. However, jQuery does not have packaging support for this method, so this.reset() is available. You can also use $(this)[0].reset( );
Regarding when to use both? You can see the following example:
$('a').click(function( ){
this.innerHTM==$(this).html()=='jQuery';//The three are the same.
this.getAttribute('href')==this.href== $(this).attr('href')//The three are the same;
this.getAttribute('target')==this.target==$(this).attr('target')// The three are the same;
this.getAttribute('data-id')==$(this).attr('data-id')//The two are the same;
});
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