julienkarst
HomeAboutServicesWorkProductsBlog
HomeAboutServicesWorkProductsBlog
  1. Home
  2. En
  3. Blog

Blog

Thoughts, insights, and tutorials on web development

How to display time ago from a date in Swift
swiftJune 24, 2020

How to display time ago from a date in Swift

Two approaches to display relative time in Swift: the built-in RelativeDateTimeFormatter for Swift 5.1+ and a manual implementation for older versions.

Read More
How to mock a javascript module with jest
javascriptDecember 15, 2019

How to mock a javascript module with jest

Understanding how Node.js module caching works and how to leverage it for mocking modules in Jest tests.

Read More
How to setup circleci inside a monorepo
circleciNovember 19, 2019

How to setup circleci inside a monorepo

Using CircleCI 2.0 API with pipeline parameters and conditional workflows to run CI per-package in a monorepo.

Read More
Freelance Web and Mobile Developer in Nancy, Lorraine
freelanceJanuary 8, 2016

Freelance Web and Mobile Developer in Nancy, Lorraine

Discover how a freelance web and mobile developer based in Nancy, Lorraine, delivers tailor-made digital solutions through a four-step process: project brief, planning, development with SEO, and final delivery with ongoing support.

Read More
J
julienkarst

Tech Lead & Full-Stack Developer specializing in modern web technologies including React, Next.js, Node.js, and TypeScript.

Paris, France 🇫🇷
hello@julienkarst.com
Available for projects

Navigation

Main Pages

  • Home
  • About
  • Services
  • Work

Content

  • Products
  • Blog

Recent Posts

  • How to display time ago from a date in Swift

    Jun 24, 2020•1 min read
  • How to mock a javascript module with jest

    Dec 15, 2019•1 min read
  • How to setup circleci inside a monorepo

    Nov 19, 2019•1 min read

Popular Tags

swiftiosdate-formattingjavascriptjesttestingnodejscircleci

Flagship Solutions

    Legal & Resources

    • Legal
    • Terms
    • Changelog

    Stay Updated

    Never miss a new post

    Get the latest insights on web development, tech trends, and exclusive content delivered straight to your inbox.

    No spam ever. Unsubscribe anytime with one click.

    © 2026 julienkarst. All rights reserved.Built with Next.js & TypeScript

    Available worldwide
    Sitemap