How-To Guides
Step-by-step practical guides for common coding tasks.
CSS How-Tos
How to Create a Sticky Navbar
cssMake a navigation bar that sticks to the top of the page when scrolling.
How to Center a Div
cssCenter a div element horizontally and/or vertically using modern CSS.
How to Create a CSS Card Hover Effect
cssAdd smooth hover animations to cards with CSS transitions.
How to Create a CSS Gradient Button
cssStyle a button with a beautiful gradient background and smooth hover states.
How to Create a CSS Dark Mode Toggle
cssImplement a dark/light mode toggle using CSS custom properties and a checkbox.
JAVASCRIPT How-Tos
How to Fetch Data from an API
javascriptUse the Fetch API to make HTTP requests and handle responses.
How to Use localStorage
javascriptSave and retrieve data in the browser using localStorage.
How to Debounce a Function
javascriptLimit how often a function fires using debounce — perfect for search inputs and resize events.
How to Copy Text to Clipboard
javascriptProgrammatically copy text to the clipboard using the modern Clipboard API.
How to Sort an Array of Objects
javascriptSort arrays of objects by string, number, or date properties.
How to Format Dates in JavaScript
javascriptFormat dates using Intl.DateTimeFormat and the Date object.
HTML How-Tos
How to Create a Modal Dialog
htmlBuild an accessible modal popup using the HTML <dialog> element.
How to Create a Responsive Image Gallery
htmlBuild a responsive photo gallery using CSS Grid without any JavaScript.
How to Build a Responsive Navigation Menu
htmlCreate a navigation bar that collapses to a hamburger menu on mobile.
PHP How-Tos
How to Validate a Form in PHP
phpSanitize and validate form input in PHP to prevent XSS and SQL injection.
How to Connect to MySQL with PDO
phpConnect to a MySQL database using PHP PDO with prepared statements.
How to Send Email with PHP
phpSend emails in PHP using mail() or PHPMailer with SMTP.