specma v3.1.0

Specma

Simple, reusable and composable validation

Specma is a Javascript library to validate any type of value against a simple, reusable and composable spec.

• Collection specs defined with the exact same shape as the value!
• Based on predicate functions of type true || "reason"
• Composable specs with intuitive and/or operators
• Easy cross-validation between multiple fields
• User defined customized invalid reasons
• Async validation out of the box
• Very small footprint

View complete documentation