App.js文件修改的代码 { /* 在React中靠路由链接实现切换组件 */} <NavLink activeClassName="add" className="list-group-item" to="/home">Home</NavLink> <NavLink activeClassName="add" className="list-group-item" to="/about">About
中,38//然后使用 onAdd 调用 TodoList 的 handleChange 来更新state,然后react自动render39varTypeNew =React.createClass({40handleAdd:function(e) {41e.preventDefault();42//通过 refs 获取dom元素,然后获取输入的内容43varinputDom =this.refs.inputnew.getDOMNode();44varnewthing =inputDom.value.trim();...
AI代码解释 handleItemDel(id){letlist=this.state.list;list.splice(list.findIndex(data=>data.id===id),1);this.setState({list:list})} 完整代码 代码语言:javascript 代码运行次数:0 运行 AI代码解释 importReactfrom'react';import'../../public/css/shop.pcss'classIndexextendsReact.Component{constru...
item.hasCompleted = !item.hasCompleted; } return item; }); this.setState({ todoList:todoList }) }; toggleAll =(ev)=>{ let {todoList} = this.state; todoList = todoList.map((item)=>{ item.hasCompleted = ev.target.checked; return item; }); this.setState({ todoList:todoList }...
Limit the swipe to percent of width, e.g.: 0.5 will make swipe possible only for 50% of elements's widthonClickType: function (optional)Callback function that should be call after list item is clicked.onSwipeStartType: (dragDirection: string) => void...
to insert new todo', response);}return await response.json();};export const useAddTodo = (): UseAddTodo => {const { mutate: addTodo, isLoading, error } = useMutation(postTodo, {onSuccess: () => {// Success actions},onError: (error) => {// Error actions},});return {addTodo...
child&&child.map(item => {returnitem.child&&item.child.length> 0 ? this.renderSubMnenu(item) : this.renderMenu(item) }) } </SubMenu> ) } 处理菜单选择,高亮,刷新保持选中状态 根据antd提供的api 去操作 selectedKeys 当前选中的菜单项 key 数组 openKeys, 当前展开的 SubMenu 菜单项 key 数组 ...
getItem(item, index){ console.log(item, index) } multipleSelect(value){ this.setState(state => { state.multipleSelectList = value return state }) } clearSelection(){ //清除表格多选 this.tableRef.current.clearSelection() } render(){ ...
DOM.render({...}) gets this object above and looks at the type, and decides whether or not to reuse an existing element on the DOM or create a new and append it. The Virtual DOM is not a simple Object –it is a recursive structure. For example, if we add two elements beneath...
To install a stable release use: npm i react-sortable --save Example First import the necessary dependencies. importReactfrom'react';importReactDOMfrom'react-dom';import{sortable}from'react-sortable'; Then create a component for the single item of the list. ...