"Uncovering the mystery of jQuery's firing problem

Currently, I am utilizing a function to adjust the height of li tags that are retrieved from a database. Additionally, I am using jQuery to assign different classes to certain li elements based on their position within a row.

The issue I am encountering is that while the positioning aspect of the jQuery statement consistently works, the equal heights part tends not to trigger at times - particularly when dealing with an empty cache. However, it reliably activates upon refreshing the page or revisiting it for the second time.

You can view a live example here! (let me know if it functions correctly for you!)

Below is the jQuery code snippet that I am currently using:


jQuery.fn.equalCols = function(){
    //Array Sorter
    var sortNumber = function(a,b){return b - a;};
    var heights = [];
    //Push each height into an array
    $(this).each(function(){
        heights.push($(this).height());
    });
    heights.sort(sortNumber);
    var maxHeight = heights[0];
    return this.each(function(){
        //Set each column to the max height
        $(this).css({'height': maxHeight});
    });
};

jQuery(document).ready(function($) {
        $(".thumbs").each(function(i) { 
        if (i % 4 == 0) 
           $(this).addClass("start");
        if (i % 4 == 3) 
           $(this).addClass("end");
    });
    $(".thumbs").each(function(i) { 
        if (i % 3 == 0) 
           $(this).addClass("start");
        if (i % 3 == 2) 
           $(this).addClass("end");
           });
    $(".event_thumbs").each(function(i) { 
        if (i % 2 == 0) 
           $(this).addClass("start");
           });
$('.thumbs, .end, .start').equalCols();
});

If you have any suggestions for improving the code or alternative methods to achieve the desired outcome, please don't hesitate to share them. Likewise, if you know how to resolve the issue and make it work flawlessly - your input would be greatly appreciated!

Answer №1

It appears that there may be an issue with not wrapping this in jQuery on the final loop. Additionally, it is unnecessary to store all heights in an array and sort them; you only need to keep track of the maximum height as you iterate through.

jQuery.fn.equalCols = function(){
    var maxHeight = 0;
    $(this).each(function(){
        var height = $(this).height();
        if (height && height > maxHeight) maxHeight = height;
    });

    return $(this).each(function(){
        //Set each column to the max height
        $(this).css({'height': maxHeight});
    });
};

Update: Due to the presence of images on the page, it's essential to wait for both the document and images to load before equalizing. To ensure all images are accounted for, equalize after each image is loaded. Be mindful that the load handler may not always trigger if an image loads faster than expected; thus, consider setting a timer to execute the equalCols function after a specified time delay. By leaving the load handler on the image, any changes made will prompt reapplication of the equalization process.

 $(function() {
     $('img').load( function() { /* equalize after every image load */
          equalize();
     });
     setTimeout( equalize, 2000 );  /* wait 2 secs, then equalize */
 });

 function equalize() {
     $('.thumbs, .end, .start').equalCols();
 }

Answer №2

This code snippet is designed to adjust the heights of elements with a specific class in order to make them all match. It is meant to work across different web browsers, but keep in mind that it might require updating or customization.

 function equalizeHeight(elem_class)
 {
      var min_height = 0;
      var max_height = 0;
      $('.'+elem_class).each(function(){
      if($(this).height() < min_height)
      {
         min_height = $(this).height();
      }
      if($(this).height() > max_height)
      {
           max_height = $(this).height();
      }
  });
  $('.'+elem_class).each(function(){
    $(this).height(max_height);
  });
}
$(document).ready(function(){
  equalizeHeight('pricing');
});

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