Discovering a particular string within a jQuery array object: Tips and tricks

One thing that is confusing me is the jQuery array object. To explain further: I have two arrays, one called brandsLink and the other called floorLink. When a user clicks on a link, I am saving the brand name in a variable called brandName, and then checking if this variable exists in the second array. If it does, I will execute a different method. I have included an image for better understanding. The code snippet is shown below:

$('document').ready(function() {

    var brandsLink = $('.brandLinks li a[id]');
    var floorLink = $('#orionPlan .mapContainer area[id]');

    brandsLink.click(function(e){
        var brandName = this.id;

        if(brandName == floorLink.find(brandName)){
            console.log('yes both are matching.');
        }
        else {
            console.log('sorry.');   
        }
    });
});

Thank you, naresh kumar

Answer №1

  1. Using the same ID multiple times is incorrect as IDs should be unique within a document.
  2. When using the `find` method, make sure to search for elements with IDs using the '#' prefix.
  3. If a match is found, you would compare the ID value to a DOM node.

To ensure uniqueness, consider using classes or adding prefixes like `brand-` or `floor-` before your IDs. Also, adjust your comparison logic accordingly.

For example, if you have the following HTML:

<ul class="brandLinks">
   <li><a id="brand-zara" data-name="zara">Zara</a></li>
   ...
</ul>

...

<map name="..." class="mapContainer">
   <area id="floor-zara" data-name="zara" shape="rect" coords="..." />
   ...
</map>

Your click event handler can be written as follows:

brandsLink.click(function() {
    var name = $(this).data('name'); // name = "zara"
    var match = floorLink.find('#floor-' + name);
    if(match.length > 0) {
        console.log('A matching area was found in floorLink.');
    } else {
        console.log('Sorry, no match found.');
    }
});

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