@briklab/lib/jstc

Runtime type validation for JavaScript values with configurable protection levels.

Runtime Validation Only

JSTC validates at runtime and does not replace TypeScript compile-time type checking.

API

• Classes: JSTypeChecker
• Types: ProtectionLevel, JSType, JSTypeOrArray
• Constants: JSTC

Quick Start

import JSTC from "@briklab/lib/jstc";

JSTC.setProtectionLevel("boundary");
const isValid = JSTC.for([42]).check(["number"]); // true

Features

• Singleton Pattern: Use the JSTC constant for quick, shared type checking
• Custom Instances: Create JSTypeChecker instances for isolated validation
• Protection Levels: Control validation strictness with different protection levels

Diagram

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Live Demo

Recommended to test it in your browser. The test here might not work properly

import JSTC from "@briklab/lib/jstc";
console.log(JSTC.for("hello").check("string"));

import JSTC from "@briklab/lib/jstc"; console.log(JSTC.for("hello").check("string"));

Console

No logs yet.