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The most difficult part was to figure it out how I can make my operations to execute in math order. For example 3 + 5 * 2 = 13, not 16. When I met "/" "*" signs, I execute the operations, and for the rest of operations and numbers, I build 2 arrays, which will be executed at the end. I saw a function "eval()", but I wanted to make all from 0. If you have any sugestions/feedback's feel free to write.

I don't know if I did the javascript part right, it is my first project of javascript. More exactly this part of code: submit.addEventListener("click", function(){ document.querySelector(".selector").innerHTML = "You selected " + stars + " out of 5"; document.querySelector(".div-boss.first-div").classList.add("hidden"); document.querySelector(".div-boss.thank-you").classList.remove("hidden"); }), where I should display the thank you page.