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[英]How can I make a task in my Javascript to-do list appear on a new list item?
[英]How can I break the function to-do list into separate parts
我做了一个待办事项列表,当添加一个项目时,它可以被编辑和删除。 如何重写函数 createEditAndDeleteElement 以使其不那么麻烦或如何将其分解为几个部分。 当我试图打破它时,它显示 li 错误。 请帮忙
const input = document.getElementById('list');
const btnAdd = document.querySelector('.btn-add');
const toDoList = document.querySelector('.todo-list');
btnAdd.addEventListener('click', () => {
if(input.value === '') {
return
}
createEditAndDeleteElement(input.value)
input.value ='';
});
function createEditAndDeleteElement(value) {
const li = document.createElement('li');
const btnDelete = document.createElement('button');
const btnEdit = document.createElement('button');
li.className = 'todo-list-item';
li.textContent = value;
btnDelete.className = 'btn-delete';
btnDelete.textContent = 'delete';
btnEdit.className = 'btn-edit';
btnEdit.textContent = 'edit';
li.appendChild(btnDelete);
li.appendChild(btnEdit);
btnDelete.addEventListener('click', () => {
toDoList.removeChild(li);
});
btnEdit.addEventListener('click', () => {
const editInput = document.createElement('input');
const saveEdit= document.createElement('button');
saveEdit.className = 'btn-save';
saveEdit.textContent = 'Save';
toDoList.removeChild(li);
toDoList.appendChild(editInput);
toDoList.appendChild(saveEdit);
editInput.value = li.textContent;
saveEdit.addEventListener('click', () => {
toDoList.removeChild(editInput);
toDoList.removeChild(saveEdit);
createEditAndDeleteElement(editInput.value)
})
});
toDoList.appendChild(li);
};
我会使用模板: https : //developer.mozilla.org/en-US/docs/Web/HTML/Element/template
let template = document.getElementById('newElement'); let templateContent = template.content; document.getElementById('addNew').onclick = createElement function createElement() { document.body.appendChild(templateContent); } function handleActions(action){ console.log(action) }
<body> <button id="addNew">Test</button> <template id="newElement"> <button onclick="handleActions('Action 1')">Action1</button> <button onclick="handleActions('Action 2')">Action2</button> </template> </body>
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