Recent Posts
File Hashes: MD5, SHA-1, SHA-256 and How to Verify Downloads
Learn how file hashes work, compare MD5, SHA-1, and SHA-256, and verify downloads with practical commands. Understand trusted reference checksums, mismatches, and why password storage needs a different hashing method.
jQuery .unwrap(): Remove a Parent and Keep Its Children
Remove matching immediate parents while preserving their children, and understand layout, event, and restoration implications.
jQuery .wrap(): Wrap Each Element Separately
Give each selected element its own wrapper, check the returned selection, and avoid duplicate IDs or repeated nesting.
jQuery .before(): Insert Content as the Previous Sibling
Insert or move content immediately before a target, and compare before with inside insertion and insertBefore syntax.
jQuery .attr(): Read and Set HTML Attributes
Read and set attributes, distinguish them from current field properties, and understand Boolean and ARIA handling in jQuery 4.0.
What Is React? Key Concepts and Differences from jQuery
Understand components, JSX, props, and state, then compare how React and jQuery update a page. Run equivalent counter examples and learn which approach fits your project.
jQuery .after(): Insert Content as the Next Sibling
Insert or move content immediately after a target, and compare after with inside insertion and insertAfter syntax.
HTML Tutorial / Accessibility Basics: Headings, Links, Images, and Keyboard
Review the meaning and keyboard use of headings, links, images, and forms. Practice manual testing on a small page with a skip link, persistent field instructions, and visible focus.
HTML Tutorial / Build a Small Multipage Website
Build Home, About, and Contact pages with shared navigation and distinct metadata. Separate contact-input practice from a receiving service and check navigation, validation, and keyboard completion criteria.
HTML Tutorial / Find Errors and Validate an HTML Document
Find markup issues with the Nu HTML Checker and distinguish validation from browser behavior. Compare a complete duplicate-ID example with its correction and test each label association.