What could be the reason for the malfunctioning of jquery hover functionality?

My goal is to develop a unique text editor that can send Ajax requests when a word is hovered. The code snippet below shows my progress so far:

<div class="word_split" contenteditable="true">Don't break my heart.</div>

Included in the page, we have some jQuery scripts:

$(document).ready(function () {
    $(".word_split").hover(function () {
        if ($(".word_split").children().length == 0) {
            $(".word_split").lettering('words');
        }
        else {
            $(".word_split").children().lettering('words');
        }
    });
});

$(document).ready(function () {
    $(".word_split span").hover(function () {
        //Ajax requests will be made here
        alert("sadfsdafsa");
    });
});

Additionally, there is CSS styling:

.word_split span:hover {
    font-weight:bold;
}

The 'Lettering' function separates each word in the target tag into spans with unique classes like word1, word2, and so on.

I've encountered an issue where the second jQuery function doesn't work as expected, while the CSS styling works fine. I'm seeking help to understand why this behavior is happening and how I can resolve it. Thank you!

javascriptjqueryhtmlcss

Answer №1

Upon initial page load, the absence of <span> elements prevent the event from being connected to anything. To rectify this issue, consider utilizing the on function with a 'mouseover' event to ensure that future elements are equipped with the necessary event handler:

$(document).ready(function () {
    $(".word_split").on('mouseover', 'span', function () {
        //Requests will be made here
        alert("sadfsdafsa");
    });
});

An additional concern arises when hovering over the text multiple times triggers the split word functionality repeatedly. This leads to an accumulation of empty spans and subsequent requests being triggered unnecessarily. It may be beneficial to execute the lettering() directly within the document ready function rather than based on hover events:

$(document).ready(function () {
    if ($(".word_split").children().length == 0) {
        $(".word_split").lettering('words');
    }
    else {
        $(".word_split").children().lettering('words');
    }

    $(".word_split").on('mouseover', 'span', function () {
        //Requests will be made here
        alert("sadfsdafsa");
    });
});

For your convenience, a working JsFiddle example is available here.

It is recommended to consolidate all code execution within a single $(document).ready call for improved efficiency and better control over the sequence of operations.

Answer №2

To ensure proper functionality on page load, it is important to utilize the .on() method instead of relying on existing span elements:

<div class="word_split" contenteditable="true">Please don't shatter my heart.</div>

... (I have integrated a lettering function within my code)

(function($){
    function injector(t, splitter, klass, after) {
        var text = t.text()
        , a = text.split(splitter)
        , inject = '';
        if (a.length) {
            $(a).each(function(i, item) {
                inject += '<span class="'+klass+(i+1)+'" aria-hidden="true">'+item+'</span>'+after;
            });
            t.attr('aria-label',text)
            .empty()
            .append(inject)

        }
    }

    var methods = {
        start : function() {

            return this.each(function() {
                injector($(this), '', 'char', '');
            });

        },

        separate : function() {

            return this.each(function() {
                injector($(this), ' ', 'word', ' ');
            });

        },

        divide : function() {

            return this.each(function() {
                var r = "eefec303079ad17405c889e092e105b0";
                // Due to inconsistencies in splitting <br/> tags across browsers,
                // we replace all instances with an md5 hash
                // If you try to use this plugin on that hash string, it will fail.
                injector($(this).children("br").replaceWith(r).end(), r, 'line', '');
            });

        }
    };

    $.fn.lettering = function( action ) {
        // Implementing method logic
        if ( action && methods[action] ) {
            return methods[ action ].apply( this, [].slice.call( arguments, 1 ));
        } else if ( action === 'letters' || ! action ) {
            return methods.start.apply( this, [].slice.call( arguments, 0 ) );
        }
        $.error( 'Method ' +  action + ' does not exist within jQuery.lettering' );
        return this;
    };

})(jQuery);

$(document).ready(function () {
    $(".word_split").hover(function () {
        if ($(".word_split").children().length == 0) {

            $(".word_split").lettering('separate');
        }
        else {
            $(".word_split").children().lettering('separate');
        }
    });

    $(".word_split").on('mouseover', 'span', function () {

        alert("I am hovering!!");
    });
});

Click Here for Fiddle

Answer №3

It's important to remember to execute the second function after lettering because without it, the span element won't be present.

$(document).ready(function () {
   if ($(".word_split").children().length == 0) {
       $(".word_split").lettering('words');
   }
   else {
       $(".word_split").children().lettering('words');
   }
   $(".word_split span").hover(function () {
       //This section will handle requests
       alert("Hovering over a word");
   });
 });

To optimize performance, consider running this code only once instead of on every hover event.

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