singleton
let instance;
let counter = 0;
class Counter {
constructor() {
if (instance) {
throw new Error("You can only create one instance!");
}
instance = this;
}
}
const singletonCounter = Object.freeze(new Counter());
export default singletonCounter;singleton pattern
class Singleton(object):
__instance = None
def __new__(cls, *args):
if cls.__instance is None:
cls.__instance = object.__new__(cls, *args)
return cls.__instanceCopyright © 2021 Codeinu
Forgot your account's password or having trouble logging into your Account? Don't worry, we'll help you to get back your account. Enter your email address and we'll send you a recovery link to reset your password. If you are experiencing problems resetting your password contact us
