readme.md

Land one level up in your path

Current Path	Result
/a/b/c	/a/b
/a/b	/a
/a	/
/	/ (stays)

What this does:

• .filter(Boolean) cleans out empty strings, like the one before a in /a.
• .pop() knocks off the last piece.
• Reconstructs the path and falls back to / if it’s empty.

goUp.js

function goUp(){
  let parts = window.location.pathname.split('/').filter(Boolean);
  parts.pop();
  let newPath = '/' + parts.join('/');
  window.location.href = newPath || '/';
}

// goUp() will take you one level up.

goUp_oneLine.js

window.location.href = '/' + window.location.pathname.split('/').filter(Boolean).slice(0, -1).join('/');