Coding tips
JavaScript map, filter and reduce Explained
JavaScript map, filter and reduce explained with practical examples: transform, keep and combine array items, chain them, and avoid the classic mistakes.
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Coding tips
Coding tips and build notes by Mahir Faysal, a student web developer in Bangladesh: tested Python, HTML, CSS, JavaScript and PHP tutorials, plus notes from my Next.js and Gemini projects. Sample posts are marked and drafts stay in the admin area.
#Beginners
#Security
#PHP
#Forms
#Next.js
#TypeScript
#CSS
#Gemini API
#HTML
#JavaScript
#Layout
#localStorage
#Python
#Zod
#Zustand
#Accessibility
#Arrays
#Async
#Canvas API
#CSS Grid
#Email
#Flexbox
#List comprehension
#MySQL
Coding tips
PHP Form Validation and Sanitization Guide
How to validate and sanitize PHP form input: trim, filter_var, mb_strlen and allow-lists, then escape output with htmlspecialchars, add CSRF and redirect.
Coding tips
PHP PDO Prepared Statements for Beginners
Learn PHP PDO prepared statements with MySQL: connect safely, insert, select, update and delete, plus LIKE, IN lists, LIMIT, transactions and SQL injection.
Coding tips
Python List Comprehension Examples Explained
Python list comprehension examples I actually use: basic syntax, filtering with if, if/else, nested loops, dict and set comprehensions, and common mistakes.
Coding tips
Python f-Strings: Formatting Examples
Python f-string formatting examples for decimals, thousands separators, percentages, alignment, dates and = debugging, plus what's new in Python 3.12 and 3.14.
Coding tips
HTML Semantic Tags Explained With Examples
HTML semantic tags explained with examples: header, nav, main, article, section, aside and footer, when to use each, and the div mistakes to avoid.
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