Changes for page Expressive Names
Last modified by chrisby on 2023/11/18 17:45
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... ... @@ -1,21 +1,24 @@ 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 -* ** 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`.3 +* **Choose names that are descriptive of the purpose.** For example, a variables name should stand for one concept. Its better to have a variable `unorderedNumbers`, which is sorted and stored in `orderedNumbers` instead of saving both lists in the same variable `numbers`. 4 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).5 +* Make differences clear. Avoid very similar expressions and blank words are redundant (a, an, the, info, data). 6 6 * **Use pronounceable names.** Programming is a social activity that people talk about with others. 7 -* **Use searchable names. ndependentthings with the samename. 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.7 +* **Use searchable names.** Searchable means avoiding search conflicts with other similar or even identical names. 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 8 * **Avoid encodings.** There should be no references to the scope or type of the variable in the name. 9 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** 10 +* Names of classes consist of nouns or substantivistic expressions. 11 +* Method names 12 + * They 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). 13 + * Overloaded constructors can lead to confusion, e.g. if one constructor accepts a float argument and and another one an int argument. Overloaded constructors should be declared as private and functions should be used to create instances whose names highlight the difference. 14 +* No puns or humorous names. 15 +* 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". 16 +* Avoid ambiguities as in the word "add" (addition or adding). 17 +* 18 + 19 +Domain-specific terms 17 17 * Use terms from the solution domain. Programmers will be reading your code, so use technical language. 18 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.22 +* Add meaningful context. Together with the names of other variables and methods, this context can be created. 23 +* Do not add superfluous context. Shorter names are better than longer ones, as long as they are clear. 24 +* Dare to rename things. Your colleagues should be grateful for improvements.