Static Job Listings built with React and TypeScript

Hi Gediminas! Great work!

I have an improvement for you. You can remove the need for useEffect when filtering. You can do that by deriving the filtered state from jobs state. Here is my improvement.

  const [selectedFilters, setSelectedFilters] = useState<string[]>([]);
  const [jobs, setJobs] = useState<IJob[]>([]);

 // will always be re-calculated everytime selectedFilters change. No need useEffect.
  const filteredJobsSet = new Set(jobs.filter(job => {
    const tags = [...job.tools, ...job.languages, job.role, job.level, job.location]

    if (selectedFilters.every(tags.includes)) return job;
  }));

  const filteredJobs = Array.from(filteredJobsSet);

Here is a great blog post about deriving state! https://kentcdodds.com/blog/dont-sync-state-derive-it

I hope it helps! Cheers!