🧮 Vanilla-js calculator without eval() and css grid 🎨

Hello there community 😉, I am back with another project , this one was quite challenging because I've been learning Js for a month or something, especially figuring out how to make this calculator work without eval() 😖, I came up with a weird algorithm that gets a string like this "12 + 2 * 1 / 2" and calculates the result considering mathematical precedence 😁. may god save you if you want to take a look at app.js 😂. please feel free to give me any feedback you guys are always helping me out and I really appreciate it.