#Tutorial.
87 posts filed under this topic.
How to Consume Vercel Skills in the AI SDK
Stop writing monolithic system prompts. Learn how to programmatically inject modular Vercel Agent Skills into your AI SDK workflows to build smarter applications.
How to Build and Publish a Vercel Agent Skill
Stop writing complex wrappers. Learn how to define, test, and publish a Vercel Agent Skill using the standard npx skills CLI and simple Markdown.
Practical Usage of Vercel Skills: Injecting Domain Knowledge into Cursor and Claude Code
A pragmatic guide to actually using Vercel Agent Skills in your daily workflows. Learn how to import community skills and stop your AI from hallucinating outdated boilerplate.
An Intro to HTML <address> Tag
The semantic <strong>HTML <code><address></code> element</strong> indicates that the enclosed HTML provides contact information for a person or people or an organization of a document or an article representing document or an article.
Agent Skills with Google Gemini: Function Calling Guide
Complete guide to Gemini function calling — define tools, handle function_call responses, return results, and compare syntax with Claude and OpenAI. Node.js.
Vercel AI SDK Tools: One API for Claude and OpenAI Skills
Vercel AI SDK's unified tool interface works with Claude, OpenAI, and Gemini. Write your skill once and switch AI providers without rewriting the agent loop.
Build a GitHub Issue Creator Skill for Your AI Agent
Create a production-ready agent skill that creates GitHub issues from natural language, with label assignment, duplicate detection, and dry-run mode.
Chaining Agent Skills: Research, Summarize, and Save
Build a skill chain where an agent searches the web, summarizes findings, and saves results to a file — all from a single prompt. Full Node.js walkthrough.
File System Skills: Let Your Agent Read and Write Files
Build safe file system skills that let an agent read, write, and list files — with path sandboxing, size limits, and guardrails to prevent runaway writes.
Agent Skills with Memory: Persisting State Between Chats
Teach your agent to remember across conversations. Build read/write memory skills backed by a JSON file, then upgrade to SQLite — full Node.js code.
Testing and Debugging Agent Skills Before You Deploy
Skills that work alone fail differently inside an agent loop. Unit test your tools, mock AI calls, and debug the full tool_use cycle in Node.js.
Handling Errors in Agent Skills: Retries and Fallbacks
What happens when a tool fails? Handle errors in agent skills — timeouts, bad API responses, retries, and graceful fallbacks with real Node.js code.
Agent Skills with the OpenAI API: Function Calling Explained
How to use OpenAI function calling with gpt-4o — define functions, handle tool_calls in responses, execute your code, and return results. Full Node.js working example.
Agent Skills with the Claude API: tool_use From Scratch
Learn how to give Claude tools using the Anthropic API — define tools, handle tool_use responses, execute functions, and return results. Full Node.js working example.
Build Your First Agent Skill for OpenClaw (Step-by-Step)
Learn how to create a custom OpenClaw skill using SKILL.md — from a simple weather lookup to a database query. Real code, real scenarios, no fluff.
How to Install OpenClaw on Ubuntu, macOS, and Windows (2026 Guide)
Step-by-step guide to install OpenClaw on Ubuntu, macOS, and Windows — including Node.js setup, openclaw init walkthrough, API key configuration, and common error fixes.
OpenClaw Tutorial: Build Your First AI Agent in 15 Minutes
Build your first OpenClaw agent from scratch — connect Telegram, configure a heartbeat schedule, set up memory, and swap LLMs. A complete hands-on walkthrough with real scenarios.
How OpenClaw Memory Works (And Why Your Data Never Leaves Your Machine)
OpenClaw stores your AI agent's memory as plain Markdown files on your machine — no cloud sync, no third-party servers. Here's exactly how it works and how to back it up.
OpenClaw Integrations: Connect WhatsApp, Telegram, Slack and More
Step-by-step guide to connecting OpenClaw to Telegram, WhatsApp, Slack, and Discord — including bot token setup, voice mode config, multi-platform routing, and privacy notes.
OpenClaw Multi-Agent Setup: Make Your Agents Talk to Each Other
Learn how to build OpenClaw multi-agent pipelines using ACP — connect a research agent, writer agent, and publisher agent so they work together autonomously overnight.
How to Get Your Dart Version from the Command Line
Learn the quick way to check your Dart SDK version on Windows, macOS, or Linux using the `dart --version` command.
How to Write Your First Claude Code Skill (SKILL.md Guide)
A hands-on tutorial to create a working Claude Code skill using SKILL.md — build a /smart-commit skill.
Build Your First MCP Server for Claude in 15 Minutes
A step-by-step tutorial to scaffold a minimal MCP server in TypeScript, expose a tool, and connect it to Claude.
How to Add Claude to Your App Using the Anthropic API
A practical guide to integrating Claude into your app with the Anthropic SDK — from first call to streaming and cost management.
Python Arithmetic Operators: A Complete Guide for Beginners
Master Python arithmetic operators with this comprehensive guide. Learn addition, subtraction, multiplication, division, floor division, modulo, and exponentiation with clear examples and emojis! 🚀
Python Comparison Operators: Mastering Equality in Python
Learn how to compare values in Python using comparison operators like == and !=. Explore equality checking with clear code examples, use cases with if-statements, and fun emojis! ⚖️
Python Relational Operators: Comparing Values Like a Pro
Understand Python relational operators (<, <=, >, >=) to compare numeric values and variables. Master boolean logic with clear code examples and vibrant emojis! 📊
Python Ternary Operator: Writing Cleaner if-else in One Line
Discover the Python ternary operator, the elegant one-liner for if-else statements. Learn the syntax, see practical examples, and understand when to use it for cleaner code! ⚡
Java - Relational Operators
Java - Relational Operators
Java - Comparison Operators
Java provides operators that can be used to compare values or values within variables. As the name implies both `==` and `!=` are used for Comparison.
Java - Arithmetic Operators
Java - Arithmetic Operators
Introduction to MongoDB
An introductory guide to MongoDB, the popular NoSQL document-oriented database. Learn about its core architecture—databases, documents, and collections—and see how it compares to MySQL for high-volume data storage.
Introduction to JAVA
Java is a high-level general programming language originally developed by Sun Microsystems and released in 1995. Java runs on more than 5.5billion devices that quite huge.
PHP Interview Questions
This tutorial explains with syntax and an example of how to flatten a multi-dimensional array based on the value of depth specified in the Laravel framework.
MySQL - List all Databases
In this article, you will see how to retrieve list of databases with MySQL.
Introduction to SQL
In this article we look into intro about SQL aka **Structured Query Language**. Used by numerous big giant tech companies & by widely popular applications.
Dart - Comments
A comprehensive guide to using comments in Dart and Flutter. Learn about single-line, multi-line, and documentation comments to make your code more readable and maintainable.
Display the multiplication table in Python
A simple Python program to generate the multiplication table for any given number using loops. Perfect for beginners to practice basic Python syntax and iterative logic.
Dart - Semicolons
Understand why semicolons are mandatory in Dart and how they are used to terminate statements. A must-read for developers transitioning to Flutter from semicolon-optional languages.
Generate a Random number in Python
Learn how to generate random integers and floating-point numbers in Python using the standard `random` library. This tutorial covers the `randint()` and `random()` functions with practical code examples.
How to check if a variable is an integer in Python
A quick guide on how to check if a variable is of integer type in Python using the `type()` and `isinstance()` functions. Essential for data validation and type-safe programming.
Swapping Variable Values in Python
Discover multiple ways to swap the values of two variables in Python, including the elegant tuple unpacking method and the traditional third-variable approach.
Get Python Version via Command Line
This article, guide you through the retrieval of Python version via command line.
Find the length of a string using len() function in Python
In this article, we explain a way to find length of a string using built-in len() function, for e.g, length of "Earth is a beautiful planet in Solar System" is 43 (including space).
Program to Print Hello, World! in Python
Program to Print Hello, World! in Python
PHP - Ternary Operator
PHP - Ternary Operator
Links in Markdown
The Markdown language supports creating different types of links including internal & external. In this article you will see how to create different links as per your need. The text enclosed within `[]` and link within `()` to create link.
Create directories or folders in Linux with mkdir command
The `mkdir` command comes handy to make one or more directories aka folders in Linux system. This article shows the basic usage of mkdir command with examples.
List in Markdown
The Markdown language supports creating different types of list with different types of bullets. In this article we will see how to create ordered and unordered list as per need. Use `-` to create unordered list and `1` for ordered at the start of lines.
Emphasis in Markdown
The Markdown language supports creating different level of heading styles. In this article we will see how to create different headings as per need. Use `#` to create heading at the start of lines.
Headings in Markdown
The Markdown language supports creating different level of heading styles. In this article we will see how to create different headings as per need. Use `#` to create heading at the start of lines.
Python Introduction
An introduction to Python programming language, its features and why you should learn it.
Convert array to an object in JavaScript
This article explains simplest and quickest way to convert array to an object in JavaScript. Using widely accepted spread operator `...` makes easy to do it.
Dart - Relational Operators
Dart - Relational Operators
Linux commands to find IP address of a website
Even wondering how to find an IP address of a website in Linux? This article shows the usage of command line utilities to get IP address and other details.
Dart - Comparison Operators
Dart - Comparison Operators
Dart - Arithmetic Operators
Dart - Arithmetic Operators
JavaScript, How to update an array element
This article explains simplest way to update value of an array element. Updating an array element is just like assigning a new value to variable using an assignment operator.
Flatten an Array One Level Deep in Javascript
This article explains to flatten an array one level deep in javascript comparing with lodash _.flatten method.
Identify whether device is a mobile or desktop
This article explains to flatten an array one level deep in javascript comparing with lodash _.flatten method.
Linux command: dirname
The `dirname` command comes handy to retrieve path where the file is saved. This article shows the usage of dirname command with example.
How to find the length of a list in Dart
The `length` property is one of the easiest ways to find the length of list in Dart. This is the most conventional technique adopted by all programmers.
Show or Hide Absolute Line Numbers in Vim Editor
Get stored data with localForage an open-source JavaScript library that refines the experience of saving data to web browser databases.
Get Data From Browser Database Stored With Localforage
Get stored data with localForage an open-source JavaScript library that refines the experience of saving data to web browser databases.
Save Data To Offline Storage With Localforage
localForage an open-source JavaScript library that refines the experience of saving data to web browser databases like `localStorage`.
An Intro to HTML <kbd> Tag
Use the HTML kbd semantic tag instead of code tag to denote our text as a keyboard input. Great for preparing documentations...
How To Reset An HTML Form With JavaScript
JavaScript allows us to programmatically reset an HTML form. This tutorial explains with an example of how to do it with vanilla or pure JavaScript.
How to create collapsible content using HTML5 details tag
How to create collapsible content using HTML5 details tag
How to build query string from an array with http_build_query in PHP
How to build query string from an array with http_build_query in PHP
Short Circuit Conditionals With Logical OR(||) Operator - JavaScript
Short Circuit Conditionals With Logical OR(||) Operator - JavaScript
Short Circuit Conditionals With Logical AND(&&) Operator - JavaScript
Short Circuit Conditionals With Logical AND(&&) Operator - JavaScript
How to add an element to ending of an array with ES6
How to add an element to ending of an array with ES6
How to add an element to starting of an array with ES6
How to add an element to starting of an array with ES6
Difference between undefined, null and undeclared in JavaScript
Understand the subtle yet important differences between undefined, null, and undeclared variables in JavaScript with practical examples and best practices.
What's the difference between a method and a function?
Understand the subtle yet important difference between a method and a function in JavaScript. Learn how context and object association define these two core programming concepts.
How to open a Command Menu in Chromium based browsers such as Google Chrome
A guide on how to open the Command Menu, run commands, see other actions, and more.
Program for Collatz Conjecture in JavaScript
The Collatz Conjecture also known as 3n + 1 conjecture is an eventually one of the unsolved problem in mathematics
Assignment operators in C
A tutorial showing the usage of assignment operators in C
JavaScript - String split() function
A tutorial showing the usage of split() function in JavaScript
Chrome 80 brings support for let and class re-declarations in the Console
Re-declarations of let and class keyword are now allowed in console in Chrome 80 makes debugging more developer friendly
SQL - CREATE TABLE Statement
A tutorial for creating database table with SQL
How to find the length of a string using strlen() in C
C program to find length of a string, for e.g, length of "East or West INDIA is best" is 26 (including space and excluding null character).
Convert Hex Color to RGB or RGBA in PHP
A PHP helper function that converts any hex color code to rgb() or rgba() — handles 3-char shorthand, optional opacity, and the # prefix. With usage examples.
Refresh browser window whenever file changes are saved
A quick guide for configuring auto-reload browser window whenever file changes are saved.
indexOf() Method in Javascript
JavaScript array indexOf() method returns the index of first occurrence at which a given element can be found in the array, or -1 if it is not present
How to find the array index key of multi-dimensional array
How to find the array index key of multi-dimensional array
How to Get Values from Multi-dimensional Arrays with array_column()
array_column() is an inbuilt PHP function which is used to get the values from a single column from the multi-dimensional array or an array of objects.