70 lines
1.8 KiB
JavaScript
70 lines
1.8 KiB
JavaScript
document.addEventListener('DOMContentLoaded', () => {
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const list = [];
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const form = document.querySelector('.shopping-form');
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const itemInput = document.querySelector('.shopping-form-item-input');
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const quantityInput = document.querySelector('.shopping-form-quantity-input');
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const incrementButton = document.querySelector('.shopping-form-increment-button');
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const decrementButton = document.querySelector('.shopping-form-decrement-button');
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const items = document.querySelector('.shopping-items')
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incrementButton.addEventListener('click', incrementQuantity)
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decrementButton.addEventListener('click', decrementQuantity)
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form.addEventListener('submit', addItemToList)
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function incrementQuantity() {
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const currentValue = parseInt(quantityInput.value);
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const newValue = currentValue + 1;
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quantityInput.value = newValue;
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}
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function decrementQuantity() {
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const currentValue = parseInt(quantityInput.value);
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const newValue = currentValue - 1;
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if (newValue > 0) {
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quantityInput.value = newValue;
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}
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}
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function addItemToList(event) {
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event.preventDefault();
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const itemName = event.target['item-name'].value;
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const itemQuantity = event.target['item-quantity'].value;
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if (itemName !== '') {
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const item = {
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name: itemName,
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quantity: itemQuantity
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};
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list.push(item);
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renderListItems();
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resetInputs();
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}
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}
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function renderListItems() {
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let itemsStructure = '';
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list.forEach((item) => {
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itemsStructure += `
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<li class='shopping-item'>
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<span>${item.name}</span>
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<span>${item.quantity}</span>
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</li>
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`;
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});
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items.innerHTML = itemsStructure;
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}
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function resetInputs() {
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itemInput.value = '';
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quantityInput.value = '1';
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}
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}) |