What is a best practice to follow when writing clean code?

Question

BlackTom AI · Accepted Answer

Question: What is a best practice to follow when writing clean code?

Option 1: 'Each method in a program should accomplish at least two tasks.' Dos and don'ts of clean code emphasize clarity and single responsibility. This statement runs counter to the principle of keeping methods focused on a single task to improve readability and maintainability. Suggesting a minimum of two tasks can encourage unnecessarily large or multi-purpose methods.

Option 2: 'There should be no spaces between the math operators and the variables used in each calculation.' While consistent spacing around operators is standard style guidance, the more fundamental clean-code principle is readability and consistency, not a rigid prohibition on all spacing. Some style guides actually prefer spaces for readability; this statement is overly prescriptive and not universally true.

Option 3: 'There should be one common indentation for a class, a method, a loop, and a decision.' Consistency in indentation is valuable, but insisting on a single indentation level across all structural elements ignores real-world need for nested structures and varying indentation levels to reflect scope. Clean code supports consistent indentation rules, but the premise here is too absolute and impractical for real codebases.

Option 4: 'The names of variables should be noun-like, and the names of methods should be verb-like.' This aligns with common naming conventions across languages: nouns for data holders (variables, fields) and verbs for actions (methods, functions). It enhances readability and communicates intent, reducing cognitive load for future readers and maintainers.

In examining each choice, consider the underlying goal of clean code: readability, maintainability, and clear intent. Option 1 introduces an unnecessary constraint that can dilute focus; Option 2 centers on spacing as a universal rule, which is not universally accurate and depends on the style guide; Option 3 prioritizes uniform indentation in a way that may clash with nested structures; Option 4 reinforces standard, intuitive naming that improves code comprehension. Thus, the most sound best practice among these is the naming convention described in Option 4.

What is a best practice to follow when writing clean code?单项选择题

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