There is no getting away from JavaScript these days, so you might as well learn that and HTML / CSS. You will probably want to learn a backend language as well

There is no getting away from JavaScript these days, so you might as well learn that and HTML / CSS. You will probably want to learn a backend language as well (you could use JavaScript there as well, but there are better options). If you see yourself being in a more corporate job I would suggest Java (this will likely be more stable but boring). If you see yourself in a more startup role (less organized, probably more interesting, probably more frustrating) Python is a good choice.