XPath, or XML Path Language, is a query language designed to navigate through elements and attributes in an XML document. The document.evaluate() method in JavaScript allows developers to execute XPath expressions against an XML document, returning nodes or values based on the specified query. While this functionality is powerful, it also poses risks of injection attacks if user input is not properly handled.
CSS filter: blur() is a fantastic tool for adding visual interest and depth to your web designs. It creates a soft, out-of-focus effect that can be used in various ways, from creating frosted glass backgrounds to subtle focus indicators. However, by default, the blur effect can sometimes overflow the boundaries of the element it’s applied to, leading to unexpected visual results. This article will guide you through techniques to keep that blur effect neatly contained within its intended space.
When working with Angular, formatting currency is quite a common requirement. The Intl.NumberFormat API provides a robust solution for this task, enabling developers to present numbers in a way that is sensitive to the user’s locale.
Semantic HTML. The term itself might sound technical and niche, but its impact on the web is anything but. It’s the foundation upon which accessible, maintainable, and search engine-friendly website content is built. Let’s dive into the core principles of semantic HTML, exploring its benefits, common pitfalls, and ultimately, why it’s a crucial skill for any web developer.
To wait for an HTML element to exist in the DOM using JavaScript, we’ll use requestAnimationFrame to periodically check for the element’s existence, and combine it with Promise to achieve this without blocking the main thread.
This approach is performance-friendly because requestAnimationFrame allows the browser to optimize rendering and ensures that the checks occur at the right time in the rendering cycle.
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.
