Article Categories
- All Categories
-
Data Structure
-
Networking
-
RDBMS
-
Operating System
-
Java
-
MS Excel
-
iOS
-
HTML
-
CSS
-
Android
-
Python
-
C Programming
-
C++
-
C#
-
MongoDB
-
MySQL
-
Javascript
-
PHP
-
Economics & Finance
Web Development Articles
Page 379 of 801
CSS only Animate - Draw Circle with border-radius and transparent background
CSS animations can create impressive visual effects, including drawing animated circles with transparent backgrounds. This technique uses border-radius and keyframe animations to create a smooth circle-drawing effect. Basic Circle Structure The animation uses multiple div elements to create the drawing effect. The main container holds two half-circles that rotate to simulate drawing: CSS Animation Styles The CSS creates the drawing effect using transforms, opacity changes, and border properties: body { ...
Read MoreHow to play HTML blocks one by one with no pops and clicks?
To play HTML audio blocks sequentially without gaps or clicks, use the onended event to chain audio playback seamlessly. HTML Structure First, set up multiple audio elements with unique IDs: Basic Sequential Playback Use the onended event to automatically play the next audio when the current one finishes: var one = document.getElementById('one'); one.onended = function() { ...
Read MoreHow to choose between `window.URL.createObjectURL()` and `window.webkitURL.createObjectURL()` based on browser?
When working with file blobs in JavaScript, different browsers may support different implementations of createObjectURL(). Modern browsers use window.URL.createObjectURL(), while older WebKit browsers used window.webkitURL.createObjectURL(). Browser Compatibility Issue The webkitURL prefix was used in older versions of Chrome and Safari, while modern browsers have standardized on URL.createObjectURL(). Creating a Cross-Browser Wrapper Function To handle both cases, create a wrapper function that checks for browser support: function createObjectURL(file) { if (window.URL && window.URL.createObjectURL) { return window.URL.createObjectURL(file); } else if (window.webkitURL) { ...
Read MoreHow to listen to Keydown-Events in a KineticJS-managed HTML5-Canvas?
To listen to keydown events in a KineticJS-managed HTML5 canvas, you need to make the canvas focusable and attach event listeners. KineticJS canvases don't receive keyboard events by default since they're not focusable elements. Making the Canvas Focusable First, get the canvas element and make it focusable by setting the tabindex attribute: // Create KineticJS stage and layer ...
Read MoreDrawing lines with continuously varying line width on HTML canvas
Drawing lines with continuously varying line width on HTML canvas creates smooth, dynamic visual effects. This technique uses quadratic curves and gradually increases the line width to create flowing, organic-looking lines. Understanding the Approach The technique involves generating a series of points along a curved path and drawing segments between them with incrementally increasing line widths. Each segment uses quadraticCurveTo() to create smooth curves rather than sharp angles. Complete Example Variable Line Width Canvas ...
Read MoreAlternatives to HTML5 iframe srcdoc?
The HTML tag is used to create an inline frame. While the srcdoc attribute allows embedding HTML content directly, several alternatives exist for dynamically setting iframe content. Understanding iframe srcdoc The srcdoc attribute specifies HTML content to display inside an iframe without requiring an external URL. iframe srcdoc Example Alternative 1: Using contentWindow.document Access the iframe's document object directly to write content programmatically. contentWindow Alternative ...
Read MoreCan a user disable HTML5 sessionStorage?
Yes, users can disable HTML5 sessionStorage in their browsers. When disabled, attempts to use sessionStorage will either throw errors or fail silently, depending on the browser implementation. How Users Can Disable sessionStorage Different browsers provide various methods to disable DOM storage, which affects both localStorage and sessionStorage: Firefox Type "about:config" in the address bar and press Enter Search for "dom.storage.enabled" Right-click and toggle to "false" to disable DOM Storage Chrome Go to Settings → Privacy and security → Site Settings Click "Cookies and site data" Select "Block third-party cookies" or "Block all cookies" ...
Read MoreHow to take a snapshot of HTML5-JavaScript based video player?
You can capture a still frame from an HTML5 video player by drawing the current video frame onto a canvas element. This technique is useful for creating thumbnails, implementing pause screens, or saving video snapshots. How It Works The process involves using the drawImage() method to copy the current video frame to a canvas. The canvas acts as a snapshot buffer that can be manipulated or saved. Example Your ...
Read MoreHTML5 and Amazon S3 Multi-Part uploads
Amazon S3 multi-part uploads allow you to upload large files in smaller chunks, providing better reliability and performance. When combined with the HTML5 File API, you can create powerful client-side upload functionality. Overview of S3 Multi-Part Uploads Amazon S3 multi-part upload is a feature that enables you to upload a single object as a set of parts. Each part is a contiguous portion of the object's data, and you can upload these parts independently and in any order. How HTML5 File API Works with S3 The HTML5 File API provides interfaces for accessing files from web ...
Read MoreWebsocket for binary transfer of data & decode with HTML5
WebSockets can handle binary data transfer using base64 encoding/decoding. Modern browsers provide built-in methods window.btoa() for encoding and window.atob() for decoding base64 data. Base64 Encoding for Binary Transfer When transferring binary data through WebSockets, encode it as base64 on the client side before sending: // Create WebSocket connection const socket = new WebSocket('ws://localhost:8080'); // Convert ...
Read More