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fix: validation

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This commit is contained in:
Ruidy 2021-02-19 13:31:50 +01:00
parent 80788adc40
commit bd1af7b44a
2 changed files with 7 additions and 5 deletions
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8
src/index.ts
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@ -1,5 +1,5 @@
import { ValidationError } from "./validation.ts"; import { idIsValid, ValidationError } from "./validation.ts";
import { getLocaleById, localesSize } from "./repository/locales.ts"; import { getLocaleById } from "./repository/locales.ts";
/** /**
* Display the iconic Hello, World * Display the iconic Hello, World
@ -8,10 +8,8 @@ export const sayHello = (id?: number) => {
if (!id) { if (!id) {
return; return;
} }
if (idInValidRange(id)) { if (!idIsValid(id)) {
throw new ValidationError(`Invalid index: ${id}`); throw new ValidationError(`Invalid index: ${id}`);
} }
return getLocaleById(id); return getLocaleById(id);
}; };
const idInValidRange = (id: number) => id < 1 || id >= localesSize;

4
src/validation.ts
View file

@ -4,4 +4,8 @@
* *
@example * `throw new ValidationError("Bad id")` @example * `throw new ValidationError("Bad id")`
*/ */
import { localesSize } from "./repository/locales.ts";
export class ValidationError extends Error {} export class ValidationError extends Error {}
export const idIsValid = (id: number) => id > 0 && id < localesSize;