import crypto from 'crypto';
-import { v4 as uuid } from 'uuid';
-
import { WebSocketCloseEventStatusString } from '../types/WebSocket';
export default class Utils {
}
public static generateUUID(): string {
- return uuid();
+ return crypto.randomUUID();
+ }
+
+ public static validateUUID(uuid: string): boolean {
+ return /^[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-4[0-9a-fA-F]{3}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}$/.test(
+ uuid
+ );
}
public static async sleep(milliSeconds: number): Promise<NodeJS.Timeout> {
return result;
}
- public static getRandomFloat(max: number, min = 0, negative = false): number {
- if (max < min || min < 0 || max < 0) {
+ public static getRandomFloat(max = Number.MAX_VALUE, min = 0, negative = false): number {
+ if (max < min || max < 0 || min < 0) {
throw new RangeError('Invalid interval');
}
const randomPositiveFloat = crypto.randomBytes(4).readUInt32LE() / 0xffffffff;
return sign * (randomPositiveFloat * (max - min) + min);
}
- public static getRandomInteger(max: number, min = 0): number {
- if (max < 0) {
+ public static getRandomInteger(max = Number.MAX_SAFE_INTEGER, min = 0): number {
+ if (max < min || max < 0 || min < 0) {
throw new RangeError('Invalid interval');
}
max = Math.floor(max);
- if (min) {
- if (max < min || min < 0) {
- throw new RangeError('Invalid interval');
- }
+ if (!Utils.isNullOrUndefined(min) && min !== 0) {
min = Math.ceil(min);
return Math.floor(Utils.secureRandom() * (max - min + 1)) + min;
}
return Math.trunc(numberValue * truncPower) / truncPower;
}
- public static getRandomFloatRounded(max: number, min = 0, scale = 2): number {
+ public static getRandomFloatRounded(max = Number.MAX_VALUE, min = 0, scale = 2): number {
if (min) {
return Utils.roundTo(Utils.getRandomFloat(max, min), scale);
}
}
public static isEmptyString(value: unknown): boolean {
- return Utils.isString(value) && (value as string).length === 0;
+ return Utils.isString(value) && (value as string).trim().length === 0;
}
public static isUndefined(value: unknown): boolean {
}
public static isEmptyArray(object: unknown): boolean {
- if (!object) {
- return true;
+ if (!Array.isArray(object)) {
+ return false;
}
- if (Array.isArray(object) && object.length > 0) {
+ if ((object as unknown[]).length > 0) {
return false;
}
return true;
}
public static isEmptyObject(obj: object): boolean {
- return !Object.keys(obj).length;
+ if (obj?.constructor !== Object) {
+ return false;
+ }
+ // Iterates over the keys of an object, if
+ // any exist, return false.
+ for (const _ in obj) {
+ return false;
+ }
+ return true;
}
public static insertAt = (str: string, subStr: string, pos: number): string =>