Changes for page Expressive Names
Last modified by chrisby on 2023/11/18 17:45
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... ... @@ -1,45 +1,21 @@ 1 - 1.1 +Names should be chosen as carefully as the name of your first-born child. It should be obvious from reading the code how it works. 2 2 3 -**Meaningful and Descriptive Names** 4 - * Choose names carefully, as if naming a child. 5 - * Names should reflect the code's purpose clearly. For example, use unorderedNumbers and orderedNumbers instead of a generic numbers. 6 -1. 7 - 8 -**Avoid Misinformation** 9 - * Steer clear of ambiguous, easily confused names or characters (e.g., l vs. 1, O vs. 0). 10 -1. 11 - 12 -**Clarity in Differences** 13 - * Distinguish names distinctly, avoiding similar expressions and redundant words (e.g., a, an, the, info, data). 14 -1. 15 - 16 -**Pronounceable and Searchable Names** 17 - * Use names that are easy to pronounce and discuss. 18 - * Name length should match its scope: short for local loops, longer for broader usage. 19 -1. 20 - 21 -**No Encodings or Mental Mappings** 22 - * Avoid including type or scope information in names. 23 - * Names should be clear without requiring mental translation. 24 -1. 25 - 26 -**Naming Conventions for Classes and Methods** 27 - * Class names: Use nouns or noun phrases. 28 - * Method names: Use verbs or verb phrases, adhering to standards like JavaBean (get, set, is, has). Utilize descriptive function names instead of overloaded constructors. 29 -1. 30 - 31 -**Avoid Inappropriate Humor and Ambiguities** 32 - * Refrain from humorous names. 33 - * Choose one word per concept to maintain consistency (e.g., always use "get" instead of alternating with "fetch" or "retrieve"). 34 - * Avoid puns and ambiguous terms (like "add" for addition or appending). 35 -1. 36 - 37 -**Domain-Specific Naming** 38 - * Use technical terms (solution domain) for clarity among programmers. 39 - * Use terms from the problem domain when no technical equivalents exist, aiding domain experts. 40 -1. 41 - 42 -**Context and Simplicity in Naming** 43 - * Provide meaningful context through combined variable and method names. 44 - * Avoid unnecessary context; opt for shorter, meaningful names. 45 - * Be open to renaming for clarity and improvement. 3 +* **Names describe purpose.** For example, it's better to have a variable `unorderedNumbers`, which is sorted and stored in `orderedNumbers` instead of saving both lists in the same variable `numbers`. 4 +* **Avoid misinformation.** For example, ambiguities, confusion with similar names or easily confused characters (l and 1, O and 0). 5 +* **Make differences clear.** Avoid very similar expressions and blank words are redundant (a, an, the, info, data). 6 +* **Use pronounceable names.** Programming is a social activity that people talk about with others. 7 +* **Use searchable names. **Searchable means avoiding search conflicts with other independent things with the same name. The length of a name should match the size of its scope. For local counting loops, one letter is sufficient; if the variable is used in several places in the code, it needs a longer name. 8 +* **Avoid encodings.** There should be no references to the scope or type of the variable in the name. 9 +* **Avoid mental mappings.** The name of a variable should not require mental effort to understand. For example, unusual abbreviations should be avoided. 10 +* **Names of classes consist of nouns** or substantivistic expressions. 11 +* **Method names** **consist of a verb** or an expression with a verb. Accessors, mutators, and predicates should be named after their value and follow the JavaBean standard (prefixes: get, set, is, has). For example, getAge(), setAge(...), isFeatureXEnabled() -> boolean, hasPermission() -> boolean etc. 12 +* **Use object creation functions rather than overloaded constructors**, as the latter can cause confusion. Overloaded constructors should be declared private, and functions should be used to create instances whose names make the difference clear. 13 +* **No puns or humorous names.** 14 +* **Choose one word for each concept.** For example, if you use the word "fetch" once for a particular concept, you should consistently use "fetch" instead of synonyms such as "retrieve". 15 +* **Avoid ambiguities** as in the word "add" (addition or adding). 16 +* **Domain-specific terms** 17 + * Use terms from the solution domain. Programmers will be reading your code, so use technical language. 18 + * Use terms from the problem domain. If there are no computer science terms, at least domain experts can refer to them. 19 +* **Add meaningful context.** Together with the names of other variables and methods, this context can be created. 20 +* **Do not add superfluous context.** Shorter names are better than longer ones, as long as they are clear. 21 +* **Dare to rename things.** Your colleagues should be grateful for improvements.