react-testing-library-examples

https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#concurrency https://github.blog/changelog/2021-04-19-github-actions-limit-workflow-run-or-job-concurrency The fully-formed ref of the branch or tag that triggered the workflow run. For workflows triggered by , this is the branch or tag ref that was pushed. For workflows triggered by , this is the pull request merge branch. For workflows triggered by , this is the release tag created. For other triggers, this is the branch or tag ref that triggered the workflow run. This is only set if a branch or tag is available for the event type. The ref given is fully-formed, meaning that for branches the format is , for pull requests it is , and for tags it is . For example, . https://docs.github.com/en/actions/learn-github-actions/contexts#github-context