guarder/lib/guards/UndefinedGuard.js

Guarder provides simple validation logic to reduce clutter with inline guard statements

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const ArgumentError_1 = require("../errors/ArgumentError");
/**
 * Undefined Guard ensures that the property is not undefined
 */
class UndefinedGuard {
    /**
     * @inheritDoc
     */
    guard(property, errorMessage, error) {
        const message = errorMessage !== null && errorMessage !== void 0 ? errorMessage : 'Property not allowed to be undefined';
        if (property === undefined) {
            if (error)
                throw new error(message);
            throw new ArgumentError_1.ArgumentError(message);
        }
        return property;
    }
}
exports.UndefinedGuard = UndefinedGuard;
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