To escape HTML string tags in JavaScript, you need to replace certain special characters with their corresponding HTML entities. This is crucial for preventing issues like Cross-Site Scripting (XSS) attacks and ensuring that user-generated content is displayed correctly without being interpreted as HTML.
When embedding content using iframe (inline frame), users may experience delays while the iframe loads, especially if the content is from a slow server or a third-party site. During this period, users may perceive the application as unresponsive. To mitigate this issue, a Please wait message or an animated loading indicator can be displayed, depending on the design requirements.
Determining whether an element is interactive or not can be crucial for various purposes, such as improving accessibility, enhancing user experience, testing purpose or debugging issues.
An interactive element is one that can receive focus, be clicked, be active, or be tabbable, allowing users to engage with it in some way. Let’s find out how to determine if an element is focusable or active using JavaScript.
When an HTML form control has the required attribute and is not visible in the viewport, when the submit action is triggered, then the browser will scroll to the element when it’s invalid and the tooltip should be displayed as expected.
To insert a custom table into existing content without affecting the current layout, you can use the Web Component, specifically a custom element that utilizes a template and a slot to render content.
To effectively use async and await with browser.runtime.onMessage in cross-browser extensions, it’s essential to understand how asynchronous message handling works within the context of browser extensions.
The Clipboard API in JavaScript provides a modern way to interact with the system clipboard, allowing reading from and writing to it programmatically. However, not all browsers support this API, or the API may not be available, so it’s important to implement a fallback solution for better compatibility. Let’s explore how to use the Clipboard API with a fallback mechanism.
To prevent multiple HTTP requests to the same endpoint, we can use a caching technique that stores and reuses previously fetched data.
This approach ensures that only the first request is sent to the server, while subsequent requests are held in a pending state and resolved with the same response as the first request.
In many browsers, when no explicit background color is set for the <html>
or <body> elements, they inherit a transparent background.
However, browsers often render the default background as white for visual consistency, particularly in user interfaces where a clear background is expected. This can lead to confusion when using JavaScript to check computed styles.
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