SMWARREN

/* (320x480) iPhone (Original, 3G, 3GS) */
@media only screen and (min-device-width: 320px) and (max-device-width: 480px) {
    /* insert styles here */
}
 
/* (320x480) Smartphone, Portrait */
@media only screen and (device-width: 320px) and (orientation: portrait) {
    /* insert styles here */
}
 

SMWARREN

import {SetStateAction, useCallback} from 'react';
import create from "zustand";

export type EqualityFn<T> = (left: T | null | undefined, right: T | null | undefined) => boolean;

// eslint-disable-next-line @typescript-eslint/ban-types
const isFunction = (fn: unknown): fn is Function => (typeof fn === 'function');

/** Given a type `T`, returns the keys that are Optional. */
type OptionalKeys<T> =