Special Fonts
This book uses the following special fonts:
- Boldface. Key terms and concepts appear in boldface on first use. These terms are also defined in the Glossary.
Code typeface. Code listings, code snippets, and special identifiers in the text such as predefined system frame names, slot names, function names, method names, symbols, and constants are shown in the Code typeface to distinguish them from regular body text. If you are programming, items that appear in Code typeface should be typed exactly as shown.- Italic typeface. Italic typeface is used in code to indicate replaceable items, such as the names of function parameters, which you must replace with your own names. The names of other books are also shown in italic type, and rarely, this style is used for emphasis.
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