Function Naming Guidelines

Function naming rules (must follow):

• Function names can only contain letters, numbers, the dollar sign ($), and underscores (_).

• Function names cannot be a JavaScript keyword (e.g., function, return, var, etc.).

• Function names cannot start with a number.

Naming convention: camelCase

Even though uppercase or proper case names technically work, the widely accepted and recommended naming convention is camelCase.

• Function names start with a lowercase word.

• If the name includes multiple words, the first letter of each subsequent word is capitalized.

Why use camelCase?

• Readability: Easier for most JavaScript developers to read and understand quickly.

• Consistency: Matches built-in JavaScript methods and common libraries.

• Avoids confusion: In some programming languages, all-uppercase names are reserved for constants.

• Google Sheets compatibility: Apps Script recognizes custom functions regardless of case, but camelCase is the standard in Google’s documentation and examples.

Best practice examples:

• timestamping

• createTimestamps

• logUserActivity

• calculateFinalScore

• generate_report

• update$Balance