mongez-supportive-is-recipes

What problem does it solve?

Form validation and data handling often require composing multiple predicates from @mongez/supportive-is to express complex rules. This Skill provides idiomatic recipes for combining predicates to validate inputs, merge structures correctly, and filter out empty values without sacrificing type safety.

Core Features & Use Cases

• Compose predicates for form validation (e.g., isEmpty + isEmail + isUrl) to enforce required fields and format constraints.
• Deep merge patterns that respect class instances by using isPlainObject to decide merge vs replace.
• Filter out empty or null values from objects and arrays while preserving meaningful data (e.g., 0 and false).
• Enable polymorphic argument handling and type narrowing hooks when integrating predicates into APIs.

Quick Start

Import the needed predicates from @mongez/supportive-is and begin applying the recipes to your forms, merges, and data filtering.