SequenceValidator

Class for validating nucleotide sequences. It determines whether a given sequence contains only valid bases for the specified conversion type and provides both full and real-time validation modes.

Constructor

constructor()

Takes no arguments. Initializes the list of valid DNA and RNA bases.

Properties

Property	Type	Description
dnaBases	string[]	Valid DNA bases: ["A", "T", "G", "C"]
rnaBases	string[]	Valid RNA bases: ["A", "U", "G", "C"]

Methods

Method	Signature	Description
validate	(sequence: string, conversionType: ConversionType): ValidationResult	Validates the full sequence against the allowed bases for the given conversion type. Returns a ValidationResult with valid: true and an empty message on success, or valid: false with a descriptive error message on failure. An empty string is considered valid.
isValidRealTime	(sequence: string, conversionType: ConversionType): boolean	Returns true if every character in the sequence is a valid base for the given conversion type. Intended for use during user input (e.g., onInput handlers) where a boolean result is preferred over a structured validation result.
getBasesForType	(conversionType: ConversionType): string[]	Returns the array of valid bases for the conversion type. DNA types return dnaBases; RNA types return rnaBases.

Types

ValidationResult

interface ValidationResult {
  valid: boolean;
  message: string;
}

• valid -- whether the sequence passes validation
• message -- error description when valid is false, empty string when valid is true

Example

import { SequenceValidator } from "./logic/SequenceValidator";

const validator = new SequenceValidator();

// Full validation
const result = validator.validate("ATXG", "DNA_COMPLEMENT");
// result.valid === false
// result.message === "Invalid DNA sequence. Only A, T, G, C characters are allowed."

const validResult = validator.validate("ATGC", "DNA_COMPLEMENT");
// validResult.valid === true
// validResult.message === ""

// Real-time validation
const isValid = validator.isValidRealTime("AUG", "RNA_COMPLEMENT");
// isValid === true

// Get bases for a type
const bases = validator.getBasesForType("RNA_PROTEIN");
// bases === ["A", "U", "G", "C"]