i find it annoying to have to manually change urls to subscribe to a community outside lemmy.world, so i wrote a bookmarklet to quickly switch to the lemmy.world instance
to use, just drag the following code to your bookmarks bar (name it whatever you like), then click it when you want to use it
javascript:(
function() {
// make sure to change this if using on a different instance
const myInst="lemmy.world";
let currUrl=window.location.toString().split("/");
let currInst=currUrl[2];
currUrl[2]=myInst;
let newUrl=currUrl.join("/")+"@"+currInst;
window.location=newUrl;
})
()
that (unless i'm misunderstanding) isn't the point of it. it's made for quickly taking you from e.g. https://lemmy.ml/c/jerboa to https://lemmy.world/c/jerboa@lemmy.ml, so it needs a const to know which instance to take you to
edit: i guess i could replace let currInst=currUrl[2]; with let currInst=window.location.hostname; but i can't see a practical difference and so i chose the shorter one