Calculator_using_JS/script.js at main · marslan70/Calculator_using_JS · GitHub

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let input = document.getElementById('inputBox');
let buttons = document.querySelectorAll
('button');

let string ="";
let arr = Array.from(buttons);
arr.forEach(button =>
        {
        button.addEventListener('click', (e) =>{
            if(e.target.innerHTML == '='){
                string = eval(string);
                input.value = string;
            }

            else if(e.target.innerHTML == "AC"){
                string = "";
                input.value = string;
            }
            else if(e.target.innerHTML == "DEL"){
                string = string.substring(0, string.length-1)
                input.value = string;
            }


            else{
            string += e.target.innerHTML;
            input.value = string;
            }

        })
    })