Installation & Quick Start

Installation

Install Validno using npm:

npm i validno

Quick Start

Here's a simple example to get you started with Validno:

import Schema from 'validno';

// Define your schema
const userSchema = new Schema({
  name: {
    type: String,
    required: true,
    rules: {
      lengthMin: 2,
      lengthMax: 50
    }
  },
  email: {
    type: String,
    required: true,
    rules: {
      isEmail: true
    }
  },
  age: {
    type: Number,
    required: false,
    rules: {
      min: 18,
      max: 120
    }
  }
});

// Validate data
const userData = {
  name: "Barney Stinson",
  email: "barney@himym.com",
  age: 35
};

const result = userSchema.validate(userData);

if (result.ok) {
  console.log('Validation passed!');
} else {
  console.log('Errors:', result.errors);
}

What's Validno?

Validno is a lightweight and flexible TypeScript validation library designed for Node.js applications. It provides:

• Type Validation: Support for built-in types and custom types
• Flexible Rules: Comprehensive validation rules for different data types
• Nested Objects: Full support for complex object structures
• Custom Messages: Define your own error messages
• Partial Validation: Validate only specific fields when needed
• TypeScript Support: Full type definitions included

Next Steps

• Learn about Schema Definition to understand how to structure your validation schemas
• Explore Validation Rules to see all available validation options
• Check out Advanced Features for complex validation scenarios