Gradle / Kotlin Version Regex for JavaScript

What this pattern does

This page provides a comprehensive, battle-tested regular expression for matching gradle / kotlin version, ported and verified for JavaScript. A rigorously tested regex reduces debugging time and protects your application from edge-case failures. The snippet below is ready to drop into your JavaScript project — whether you're validating in an Express middleware, a Next.js API route, or a client-side form.

Javascript Implementation

// Gradle / Kotlin Version
// ReDoS-safe | RegexVault — Dev & Systems > SemVer

const gradleKotlinVersionRegex = /^([0-9]+)\.([0-9]+)(?:\.([0-9]+))?(?:[.\-]([a-zA-Z0-9][a-zA-Z0-9.\-]*[a-zA-Z0-9]|[a-zA-Z0-9]))?$/;

function validateGradleKotlinVersion(input: string): boolean {
  return gradleKotlinVersionRegex.test(input);
}

// Example
console.log(validateGradleKotlinVersion("7.0")); // true

Test Cases

When to use this pattern

This pattern is drawn from the Dev & Systems > SemVer category and carries a ReDoS-safe certification. That matters for JavaScript developers because especially critical in long-running Node.js event loops where a ReDoS vulnerability can block the entire process. RegexVault audits patterns against known backtracking attack vectors, ensuring you have the necessary context before using this regex in a high-stakes production environment.

Common Pitfalls

Technical Notes

Gradle and Kotlin version strings often include qualifiers like -rc-1, -Beta, -M1 (milestone), -RELEASE, or -SNAPSHOT. The pattern is permissive on the qualifier to accommodate the wide variety of conventions.