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Web Development Tutorials

Web development tutorials across the stack — from front-end fixes to server-side builds.

176 tutorials

Web Development

How to Create a Folder If It Does Not Exist in PHP

May 22, 2026 · 3 min read Web Development

How to Convert an Image to a Base64 String in JavaScript

May 22, 2026 · 4 min read Web Development

How to Comment in a .gitignore File

May 22, 2026 · 3 min read Web Development

How to Check if an Element Is Hidden or Visible with jQuery

May 22, 2026 · 3 min read Web Development

How to Check if a Checkbox Is Checked with jQuery

May 22, 2026 · 3 min read Web Development

How to Check if a Bootstrap Modal Is Open or Closed with jQuery

May 22, 2026 · 3 min read Web Development

How to Check the HTTP Referrer with JavaScript

May 22, 2026 · 3 min read Web Development

How to Change the Default Sort Order in DataTables

May 22, 2026 · 3 min read Web Development

How to Change a Checkbox Background Color with CSS

May 22, 2026 · 3 min read Web Development

How to Break Out of a jQuery .each() Loop

May 22, 2026 · 3 min read Web Development

How to Auto-focus a Select2 Dropdown on Page Load

May 22, 2026 · 3 min read Web Development

Format Numbers in Bangladeshi / Indian Style with PHP

May 22, 2026 · 4 min read

These Web Development guides come from the same library as the rest of How7o Learn: each one documents a real task or a real failure, and the exact steps that resolved it.