如何从锚标签onclick函数调用jQuery（this）

Question

I have

 <ul>
            <li><a onclick="setSelectedTestPlan();" href="javascript:void(0);">New Test</a></li>
            <li><a onclick="setSelectedTestPlan();" href="javascript:void(0);">New Test fdgfdgfdgfdgfdgfdgfdgfdg fdg</a></li>
            <li><a onclick="setSelectedTestPlan();" href="javascript:void(0);">New Plan</a></li>
            <li><a onclick="setSelectedTestPlan();" href="javascript:void(0);">Test</a></li>
        </ul>

code and wants to add class name to a tag parrent tag li ie class="selected" bu sing jquery. I used this jquery code

function setSelectedTestPlan() {
        jQuery("#tree ul li").each(function () {
            jQuery(this).removeClass("selected");
        });

        jQuery(this).closest('li').addClass("selected");
    }

But this line jQuery(this).closest('li').addClass("selected"); doesn't work...

Please help me out...

Answer 1

HTML

<li><a onclick="setSelectedTestPlan(this);" href="javascript:void(0);">New Test</a></li>

js

function setSelectedTestPlan(el) {      
       jQuery("#tree ul li").removeClass("selected");
       jQuery(el).closest('li').addClass("selected");
    }

or

js

function setSelectedTestPlan(el) { 
   jQuery(el).closest('li').addClass("selected").siblings().removeClass("selected");
}

Answer 2

You need to send the element through the function like this

HTML

onclick="setSelectedTestPlan(this);"

js

function setSelectedTestPlan(ele) {      
       jQuery("#tree ul li").each(function () {
            jQuery(this).removeClass("selected");
        });

        jQuery(ele).closest('li').addClass("selected");
    }

Answer 3

One line:

jQuery(this).closest('li').addClass("selected").siblings().removeClass("selected");

but you will have to amend your event to pass through 'this';

onclick="setSelectedTestPlan(this);"

Answer 4

function setSelectedTestPlan(e) {
    jQuery("#tree ul li").each(function () {
        jQuery(this).removeClass("selected");
    });

    jQuery(e).closest('li').addClass("selected");
}

 <li><a onclick="setSelectedTestPlan(this);" href="javascript:void(0);">New Test</a></li>

alternative

    <ul>
        <li><a class="mylink" href="javascript:void(0);">New Test</a></li>
        <li><a class="mylink" href="javascript:void(0);">New Test fdgfdgfdgfdgfdgfdgfdgfdg fdg</a></li>
        <li><a class="mylink" href="javascript:void(0);">New Plan</a></li>
        <li><a class="mylink" href="javascript:void(0);">Test</a></li>
    </ul


$(function(){
$(".mylink").click(function(e){
     $(".mylink").parents("li").removeClass("selected");
     $(this).parents("li").addClass("selected");
     e.preventDefault();   
   });
 });

Answer 5

HTML

<li><a onclick="setSelectedTestPlan.call(this, event);" href="javascript:void(0);">New Test</a></li>

JS

function setSelectedTestPlan(e) {
   jQuery(this)closest('li').addClass("selected").siblings().removeClass("selected");
}