Question 1

How to automatically enforce this CoffeeScript style guide?

Accepted Answer

You need external tools like CoffeeLint; configure them to align with the guide's rules, such as indentation and naming conventions. The guide itself doesn't provide automation, so setup requires manual effort.

Question 2

CoffeeScript style guide vs JavaScript style guide: what's different?

Accepted Answer

CoffeeScript guides focus on language-specific features like comprehensions, 'unless' for negatives, and optional syntax (e.g., omitting parentheses). In contrast, JavaScript guides often emphasize ES6+ features like arrow functions and modules.

Question 3

When should I use parentheses in CoffeeScript functions?

Accepted Answer

The guide recommends omitting parentheses for readability in simple cases (e.g., 'baz 12') but including them in complex or chained calls (e.g., 'foo(4).bar(8)'). It provides examples to help decide based on context.

Question 4

What are best practices for CoffeeScript comprehensions?

Accepted Answer

Use comprehensions for mapping and filtering instead of traditional loops, as shown in the guide. For example, 'result = (item.name for item in array)' is preferred over manual iteration with 'for' loops.

Question 5

How to handle annotations like TODO in CoffeeScript code?

Accepted Answer

Place annotations (e.g., TODO, FIXME) on the line above the code, followed by a colon and description. The guide specifies standards for indentation and spacing, making comments consistent and actionable.

Question 6

Is CoffeeScript still worth learning over modern JavaScript?

Accepted Answer

For new projects, modern JavaScript (ES6+) or TypeScript are generally better due to broader adoption and features. This guide is most valuable for maintaining existing CoffeeScript codebases or teams committed to the language.

CoffeeScript Style Guide

What is CoffeeScript Style Guide?

Overview

Use Cases

Best For

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Pros & Cons

Pros

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Frequently Asked Questions