yiminghe/async-validator

Features

• Asynchronous Validators - Executes validation rules as promises to allow for non-blocking remote checks and database lookups.
• Asynchronous Validation - Provides a non-blocking validation engine that utilizes promises for checks requiring external network or database calls.
• Schema Validation Libraries - Functions as a library for validating data objects against defined schemas using asynchronous logic.
• Asynchronous Validation Execution - Uses a promise-based execution model to ensure slow or remote validation checks do not block the main thread.
• Object Constraint Validation Engines - Checks objects against defined schemas and constraints to generate detailed reports of validation failures.
• Custom Validation Rules - Offers a framework for extending validation logic with domain-specific checks via bespoke functions.
• Asynchronous Validation Engines - Provides a validation system that processes complex object structures and nested arrays using non-blocking promise-based execution.
• Custom Validation Functions - Provides support for executing both synchronous and asynchronous custom validation logic on specific object fields.
• Data Logic Injection - Enables the integration of custom business logic into the validation process for data objects.
• Recursive Object Validation - Recursively traverses nested object hierarchies and arrays to enforce structural correctness across deep data structures.
• Runtime Schema Validations - Provides a runtime engine to verify that objects match predefined schemas and constraints during execution.
• Data Transformation Pipelines - Implements a pipeline to sanitize, coerce, and format input values before and after the primary validation process.
• Data Validation Schemas - Provides a comprehensive system for defining schemas and enforcing validation rules on JavaScript data objects.
• Data Transformation Pipelines - Implements a sequence of transformation functions to sanitize and coerce input values before and after validation.
• Constraint Mappings - Maps field descriptors to specific validator functions to enforce constraints based on types, patterns, and ranges.
• JavaScript Schema Validation - Verifies complex data objects against defined rules and constraints to ensure structural integrity within JavaScript applications.
• Form Validation - Provides asynchronous validation capabilities suitable for maintaining responsiveness in user-submitted form data.
• Standard Constraints - Implements built-in rules for type checking, required fields, and range limits to ensure data integrity.
• Value Transformations - Modifies input data values through transformation functions before and after the validation phase.
• Dynamic Error Message Resolution - Generates human-readable error messages by resolving expected and actual values at runtime based on the failure context.
• Pre-Validation Transformations - Applies sanitization and coercion transformations to input values before they are processed by validation rules.
• Validation Error Customizations - Allows developers to override default error messages with localized or dynamic text during the validation process.
• Data Validation - Asynchronous data validation.

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