Concealed component with a one-second pause

Is there a way to dynamically hide a div element based on certain conditions in an option list? I am currently using jQuery for this purpose.

   if ($("#prov").val() == "0") {
       $("#label1").hide();
       $("#list1").hide();
   } else {
       $("#label1").show();
       $("#list1").show();
   }

However, I'm facing a delay issue where the element takes a second to hide when the value is 0. The order of my HTML and JavaScript code might be causing this delay as the element needs to be created before it can be hidden/shown.

I also attempted using the hidden property in CSS but encountered the same delayed result.

hidden{
    display: none;
}

Below are the examples of the div elements:

<div>
    <label>Location:</label>
    <div>
        <select class="form-control" id="label1">
            <option label=" "></option>
            <option value="1">Canada</option>
            <option value="0">Other</option>
        </select>
    </div>
</div>

<div>
    <label id="list1">Province:</label>
    <div>
        <select>
            <option value="  "> </option>
            <option value="AB">Alberta</option>
            <option value="BC">British Columbia</option>
            <option value="MB">Manitoba</option>
            <option value="NB">New Brunswick</option>
            <option value="NL">Newfoundland and Labrador</option>
            <option value="NT">Northwest Territories</option>
            <option value="NS">Nova Scotia</option>
            <option value="NU">Nunavut</option>
            <option value="ON">Ontario</option>
            <option value="PE">Prince Edward Island</option>
            <option value="QC">Quebec</option>
            <option value="SK">Saskatchewan</option>
            <option value="YT">Yukon</option>
        </select>
    </div>
 </div>

Thank you for your help!

Answer №1

Provide input

.show(0)

This action will eliminate the default pause between hiding and displaying content. By default, this pause is set at 400 milliseconds.

duration (default: 400)

Link to jQuery documentation on show method

Answer №2

The reason for the delay was because my JavaScript/jQuery code was placed at the bottom of my file.

What is a FOUC (Flash Of Unstyled Content)? It occurs when a web page briefly appears with default browser styles before loading an external file, as the browser engine renders the page prior to retrieving all information. The page corrects itself once style rules are loaded and applied, but the sudden shift can be distracting.

Source: https://en.wikipedia.org/wiki/Flash_of_unstyled_content

To resolve this issue, I discovered the solution of hiding the body of the webpage until everything, including JavaScript/jQuery files, is fully loaded. This way, there will be no delay in displaying the body section:

Hide the body section:

<body style="visibility: hidden;" onload="js_Load()">

The visibility property determines whether an element is visible or not.

Create a JavaScript function called js_Load() that includes the following:

document.body.style.visibility='visible';

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