Question 1

How do I run a k6 test written in TypeScript?

Accepted Answer

First, use 'npm run bundle' to transpile TypeScript files from ./src to JavaScript in ./dist, then execute with k6, e.g., 'k6 run dist/test.js'. This two-step process is detailed in the running the test section.

Question 2

k6 TypeScript template vs writing tests in JavaScript?

Accepted Answer

TypeScript adds type safety and better tooling for maintainability, but introduces a build step. For simple, one-off tests, JavaScript is faster; for complex suites, TypeScript reduces errors and eases refactoring.

Question 3

Can I convert existing k6 JavaScript tests to TypeScript with this template?

Accepted Answer

Yes, migrate by copying files to ./src, adding type annotations, and using the bundling process. The template provides a structure to ease this, but it requires manual effort and TypeScript knowledge.

Question 4

What's the performance impact of bundling TypeScript for k6?

Accepted Answer

Bundling adds minimal runtime overhead since it outputs standard JavaScript, but the compilation step itself can delay test execution, especially for large projects, though k6's performance remains largely unaffected.

Question 5

How to debug TypeScript k6 tests effectively?

Accepted Answer

Debugging requires source maps or logging in the bundled JavaScript. Since k6 runs the transpiled code, you may need to rely on console outputs or k6's built-in tools, which can be less intuitive than with plain JavaScript.

Question 6

Does this template support all k6 features like HTTP requests or custom metrics?

Accepted Answer

Yes, it transpiles to standard k6-compatible JavaScript, so all k6 APIs should work, but ensure TypeScript types are defined for full IntelliSense, and check compatibility with dynamic imports or modules.

k6-typescript-template

What is k6-typescript-template?

Overview

Use Cases

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Pros & Cons

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Frequently Asked Questions