Display/hide Sub List Items In Jquery

January 31, 2024 Post a Comment

I have this list Items to show. I want to open A onclick and if I click B it opens B and closes automatically A. Now close the sub-menu just manually onclick if it's already opened

Solution 1:

Demo

$(document).ready(function(){   
    $('ul li.expanded > a')
    .attr('data-active','0')
    .click(function(event){
       $('.submuneu').hide();    
        if($(this).attr('data-active')==0){
            $(this).parent().find('ul').slideToggle('slow');
            $(this).attr('data-active','1');
        }
        else
          $(this).attr('data-active','0');        
    });
        $('a.on').click(function(){
        $('a.on').removeClass("active");
        $(this).addClass("active");
    });

});

Solution 2:

A better way ...

So I gave an answer to another question that referred to this old answer. I find a few things wrong with this answer. For one thing, it's a bit long and convoluted. There's really no need for all the data and class checks and changes, unless you simply want to add/toggle class/data for sake of later use. Secondly, it's "laggy" looking. It jumps up and down on changes.

The following is clear plain, simple, smooth, and works on multiple levels of menu as long as they follow the basic HTML mark up of UL>LI>A+UL>LI. The latter part can be easily changed by simply changing the selectors in the following code.

The simple code:

$(function() {
    $(document).on('click', 'li a', function(e) {
        e.preventDefault();
        $(this).parents('li').each(function(i) { $(this).siblings().find('ul').slideUp(); });
        $(this).next('ul').slideToggle(function() { if (!$(this).is(':visible')) $(this).find('ul').hide(); });
    });
    $('li').each(function(i) { if ($(this).children('ul').length) $(this).css({ cursor: 'pointer' }); });
})

Full Fluid Example:

//	simply jQuery shorthand for document.ready = function() { ...
$(function() {
	//	the following is how to add events so that they work for even "dynamically" created elements. //	That is, elements created after code/page load.
	$(document).on('click', 'li a', function(e) {
		e.preventDefault();	//	ensure it doesn't try to follow a link//	close all possible siblings and cousins
		$(this).parents('li').each(function(i) { $(this).siblings().find('ul').slideUp(); });
		//	slide toggle current possible sub menu//  and close any children if no longer visible
		$(this).next('ul').slideToggle(function() { if (!$(this).is(':visible')) $(this).find('ul').hide(); });
	});
	//	uncomment the following line to ensure all sublist are closed, //	however, i strongly recommend this should be done using css//	$('ul ul').hide();//	change cursor for li elements having a sub menu
	$('li').each(function(i) {
		if ($(this).children('ul').length) {	//	test if it has a submenu
			$(this).css({ cursor: 'pointer' });
			
			//	just for this test, i'm going to add a background color to A tags on li's having a submenu//  and a little text to make it more obviousvar cntSubMenus = $(this).children('ul').find('li > ul').length,
				txt = !cntSubMenus ? ' - is a SubMenu Header' : (' - has ['+cntSubMenus+'] subMenu' + (cntSubMenus > 1 ? "s" : ""));
			$(this).addClass('level-' + $(this).parents('li').length)
			  .children('a').append(txt);
		}
	});
})

/*  this simply hides all submenus outright  */ulul { display: none; }

/*  used just for visual aid  */li { margin: .25em auto; }
lia { padding: .1em .25em; }
.level-0 > a, .level-8 > a { background-color: #1B00F8; color: #FFF; }
.level-1 > a, .level-9 > a { background-color: #f8f800; }
.level-2 > a, .level-10 > a { background-color: #C7FFFF; }
.level-3 > a, .level-11 > a { background-color: #C7FFCB; }
.level-4 > a, .level-12 > a { background-color: #E2C7FF; }
.level-5 > a, .level-13 > a { background-color: #FFC7C7; }
.level-6 > a, .level-14 > a { background-color: #C7FFED; }
.level-7 > a, .level-15 > a { background-color: #F9FFC7; }

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Solution 3:

<script>
$(document).ready(function(){
    $('ul li.expanded > a').click(function(event){
        $(this).closest(".expanded").find('ul').slideToggle('slow');
    });
        $('a.on').click(function(){
        $('a.on').removeClass("active");
        $(this).addClass("active");
    });

});
</script>

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