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Displaying a Loading Screen with PleaseWait

When developing web applications, it's essential to provide users with feedback during the loading process. This helps prevent frustration and keeps them informed about what's happening. One effective way to achieve this is by using a loading screen. In this article, we'll explore how to implement a loading screen using the PleaseWait library.

Why Use a Loading Screen?

A loading screen can be beneficial in several ways. It provides users with visual feedback that your application is working on loading its content, rather than leaving them wondering what's taking so long. Additionally, it gives you an opportunity to display a message or animation that matches your app's branding and style.

Getting Started with PleaseWait

To get started with PleaseWait, you'll need to include the JavaScript file in your application. You can do this by adding a script tag at the end of your HTML body, above any other scripts. The JavaScript file will take care of displaying the loading screen when called.

Customizing Your Loading Screen

PleaseWait offers several options for customizing your loading screen. You can specify the HTML content to display below the logo using the `loadingHtml` parameter. This could be a message, a spinner, or any other HTML element you want to display.

You can also set the background color of the loading screen by providing a valid CSS color as the `backgroundColor` parameter. When the loading screen is complete, PleaseWait will add a class called `pg-loaded` to your page, allowing you to style it accordingly.

Implementing PleaseWait

To implement PleaseWait in your application, simply call the `pleaseWait()` function as soon as possible after including the JavaScript file. This will trigger the loading screen and display the content you specified earlier.

You can wrap the HTML in your body with a div element and hide/show it when things are ready to make this process seamless. If your initial template has some styled HTML by default, such as a toolbar, you may want to hide that temporarily to prevent any flashing effects.

Including PleaseWait in Your Workflow

If you prefer, you can roll the PleaseWait library into your normal, minified JavaScript file. This allows you to use it immediately and show a loading page while the browser downloads the rest of your JavaScript. Alternatively, you can include the `please-wait.js` file at the end of your body, above any other script tags.

Remember to also include the `please-wait.css` file in your HTML or your normal workflow for styling purposes.

PleaseWait is a simple yet effective library for displaying a beautiful splash page while your application loads. By following the steps outlined in this article, you can easily implement a loading screen that enhances the user experience and provides feedback during the loading process.

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