@ticatec/web-bean-validator/dist/lib/BooleanValidator.js

A TypeScript/JavaScript library for rule-based entity validation with boundary checking for strings, numbers, dates, enums, objects, and arrays.

import BaseValidator from "./BaseValidator";
export default class BooleanValidator extends BaseValidator {
    constructor(field, options) {
        super(field, options);
    }
    checkType(value) {
        if (typeof value == "number") {
            return value != 0;
        }
        else if (typeof value == 'string') {
            let v = value.toLowerCase().trim();
            return v == 'true' || v == '1';
        }
        else if (typeof value == 'boolean') {
            return value;
        }
        return null;
    }
}