Function extractCommonPrefix

extractCommonPrefix(a: string, b: string, validDelimiters: string[]): string
Extracts the common prefix between two equation numbers. Example: "1.3.1" and "1.3.3" → returns "1.3."
Parameters
- a: string
- b: string
- validDelimiters: string[]
Returns string
- Defined in src/utils/core/citation_utils.tsx:209