function appendNumber(number) {
document.getElementById(‘calculator-display’).value += number;
}
function appendOperator(operator) {
document.getElementById(‘calculator-display’).value += operator;
}
function appendDecimal() {
const display = document.getElementById(‘calculator-display’).value;
if (!display.includes(‘.’)) {
document.getElementById(‘calculator-display’).value += ‘.’;
}
}
function clearDisplay() {
document.getElementById(‘calculator-display’).value = ”;
}
function calculateResult() {
try {
document.getElementById(‘calculator-display’).value = eval(document.getElementById(‘calculator-display’).value);
} catch (error) {
document.getElementById(‘calculator-display’).value = ‘Error’;
}
}
function calculateSquareRoot() {
const display = document.getElementById(‘calculator-display’).value;
document.getElementById(‘calculator-display’).value = Math.sqrt(parseFloat(display));
}
function calculatePower() {
const display = document.getElementById(‘calculator-display’).value;
document.getElementById(‘calculator-display’).value = Math.pow(parseFloat(display), 2);
}
