If you add parameters end of URL, you can use these as javascript variables with urlparam()


example 1

In this https://sinseiki.github.io/urlparam.js/index.html?a=1&b=abc

you can use variables "a='1'", "b='abc'"

example

example 2

In this https://sinseiki.github.io/urlparam.js/index.html?tabNum=2

you can use tabmenu colored on the second tab with this code.

        const lis = document.querySelectorAll('li');
        if (typeof tabNum === 'string') {
          lis[tabNum - 1].classList.add('on');
        }