Variable isSecurityLevel

Type Declaration

• • (value: unknown): value is SecurityLevel

  • Check if a string is a valid security level

    Type guard function that validates whether a value is a valid SecurityLevel. Useful for runtime type checking and validation of user input or API responses.

    Parameters

    • value: unknown

      Value to check (can be any type)

    Returns value is SecurityLevel

    Type predicate indicating if value is SecurityLevel

    Example

    if (isSecurityLevel(userInput)) {
      // TypeScript knows userInput is SecurityLevel here
      const level: SecurityLevel = userInput;
      console.log(`Valid security level: ${level}`);
    }
    
    isSecurityLevel('High')        // true
    isSecurityLevel('Invalid')     // false
    isSecurityLevel(123)           // false
    isSecurityLevel(null)          // false
    Copy