Conventions used

There are a number of text conventions used throughout this book.

Code in text: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: “We can do this, for example, using the sed 's/./&/g' command.”

A block of code is set as follows:

jobs:
  build-and-push-image:
    runs-on: ubuntu-latest
    permissions:
      packages: write

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

"dependencies": {
  "@wulfland/package-recipe": "^2.0.5",
  "express": "^4.18.2"
}

Any command-line input or output is written as follows:

$ npm start
> [email protected] start
> node src/index.js
Server running at http://localhost:3000

Bold: Indicates a new term, an important word, or words that you see onscreen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: “In your repository, navigate to Settings | Secrets and Variables | Actions.”

Tips or important notes

Appear like this.