Coding tips
Gemini Structured Output With Zod in Next.js
Describe the JSON once in Zod, send z.toJSONSchema() to Gemini as responseJsonSchema, then validate the reply with safeParse and retry once with the errors.
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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
How to Add a Gemini API Key to Next.js and Vercel
Step by step: a Gemini key from Google AI Studio in .env.local, a server-only helper, a Next.js route handler, Vercel environment variables and a leak test.
Coding tips
Build an Offline Habit Tracker With localStorage
A small offline habit tracker in plain HTML and JavaScript: habits saved as JSON in localStorage, streaks from local dates, a 7-day row and a JSON backup.
Coding tips
Simple Math Captcha in PHP With Sessions
A simple PHP math captcha in two functions: store the answer in the session, check it once with ctype_digit and ===, then add a honeypot and time check.
Coding tips
PHP Contact Form With mail(), No PHPMailer Needed
How I send contact form emails with PHP's built-in mail(): a fixed recipient, Reply-To, header injection checks, a UTF-8 subject and a fake sendmail.
Coding tips
JavaScript Async/Await Tutorial for Beginners
A beginner async/await tutorial: async functions, try/catch, fetch with response.ok, Promise.all for parallel work, retries, and the forEach mistake to avoid.
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