CODE EXAMPLE FOR JAVASCRIPT

chakra ui with humburger menu

<IconButton
    aria-label="Open Menu"
    size="lg"
    mr={2}
    icon={
    <HamburgerIcon />
    }
    onClick={() => changeDisplay('flex')} // added line
/>

<Flex
  display={display} // added line
  bgColor="gray.50"
  overflowY="auto"
  flexDir="column"
>

<IconButton
    mt={2}
    mr={2}
    aria-label="Open Menu"
    size="lg"
    icon={
        <CloseIcon />
    }
    onClick={() => changeDisplay('none')} // added line
/>