JavaScript_Project_1/script.js at main · YadavDipak/JavaScript_Project_1 · 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;
        }

    });
});