Simple Calculator

0

1d:Tb21,import Calculator from './calculator.js'; const numberButtons = document.querySelectorAll('[data-number]'); const operationButtons = document.querySelectorAll('[data-operation]'); const equalsButton = document.querySelector('[data-equals]'); const deleteButton = document.querySelector('[data-delete]'); const allClearButton = document.querySelector('[data-all-clear]'); const negateButton = document.querySelector('[data-negate]'); const previousOperandText = document.getElementById('previous-operand'); const currentOperandText = document.getElementById('current-operand'); const calculator = new Calculator(); function updateDisplay() { const { current, previous } = calculator.getDisplayNumbers(); currentOperandText.textContent = current; previousOperandText.textContent = previous; } numberButtons.forEach(button => { button.addEventListener('click', () => { calculator.appendNumber(button.textContent); updateDisplay(); }); }); operationButtons.forEach(button => { button.addEventListener('click', () => { const symbol = button.textContent; const opMap = { '+': '+', '-': '-', '×': '*', '÷': '/' }; calculator.chooseOperation(opMap[symbol]); updateDisplay(); }); }); equalsButton.addEventListener('click', button => { calculator.compute(); updateDisplay(); }); allClearButton.addEventListener('click', button => { calculator.clear(); updateDisplay(); }); deleteButton.addEventListener('click', button => { calculator.delete(); updateDisplay(); }); negateButton.addEventListener('click', () => { calculator.toggleNegate(); updateDisplay(); }); // Keyboard support window.addEventListener('keydown', e => { if ((e.key >= '0' && e.key <= '9') || e.key === '.') { calculator.appendNumber(e.key); updateDisplay(); return; } if (e.key === '+' || e.key === '-') { calculator.chooseOperation(e.key); updateDisplay(); return; } if (e.key === '*' || e.key === 'x' || e.key === 'X') { calculator.chooseOperation('*'); updateDisplay(); return; } if (e.key === '/' ) { calculator.chooseOperation('/'); updateDisplay(); return; } if (e.key === 'Enter' || e.key === '=') { e.preventDefault(); calculator.compute(); updateDisplay(); return; } if (e.key === 'Backspace') { calculator.delete(); updateDisplay(); return; } if (e