Javascript-jquery how to make a tag do not jump?

Under normal circumstances, I add jacascript to the href of a tag:; You can block its click events.
But this time I got a function and I can't modify the href inside. Because I need an href address to do Ajax loading.
How can I set this href to perform the onclick event without jumping?

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Under normal circumstances, I add jacascript to the href of a tag:; You can block its click events.
But this time I got a function and I can't modify the href inside. Because I need an href address to do Ajax loading.
How can I set this href to perform the onclick event without jumping?

             var _this = $(this);             var subHref = _this.attr('href');             e.preventDefault();                        $.ajax({                 url: '1.html',                 data: formVal,                 type: post,                 dataType: 'json',                 success: function(res) {                     if (res.code == 200) {                         location.href = subHref;                     } else {                                 }                 }                 error: function() {                             }             });

href= "javascript:;" onclick= "MyFunction (" http://shabi.com ")"

This is not going to work, the address must be written in the href?
Do the function parameter passing.

$ ("a"). On ("click", Function () {

return false;//想干嘛，干嘛

})

JS has a function to block the default behavior
E.preventdefault ();
You can try it.

In fact, clicking on the a tag jumps, because clicking on the triggered function returns true by default, so when the return value of the OnClick function is modified to false, it will not jump.

var a=document.getElementById("a_id");a.onclick=function(e){//do something for myselfreturn false;}

The execution function writes only return and can not execute

var a=document.getElementById("a_id");a.onclick=function(e){return;}

In the Click event, directly

return false;

Can

