我将库react-sortable-hoc用于拖放元素,但库文档没有任何删除项目的操作。我想在单击关闭按钮时删除、拖放项目。哪种方法适合通过键从对象中删除元素?
react
const SortableItem = SortableElement(({ value }: { value: string }, onRemove: any) =>
<div className="dragItems" style={{ background: 'gray' }}>
<img src={value} alt="" />
<button className="dragCloseBtn" onClick={() => onRemove(any)} />
</div>
);
const SortableList = SortableContainer(({ items }: { items: string[] }) => {
return (
<div className="dragAndDrop">
{items.map((value, index) => (
<SortableItem key={'item-${index}'} index={index} value={value} />
))}
</div>
);
});
constructor(props: any) {
super(props);
this.state = {
items: [
{
"id": 0,
"link": "https://via.placeholder.com/150"
},
{
"id": 1,
"link": "https://via.placeholder.com/150"
}
],
};
}
public onSortEnd = ({ oldIndex, newIndex }: { oldIndex: number, newIndex: number }) => {
this.setState({
items: arrayMove(this.state.items, oldIndex, newIndex),
});
};
public onRemove(e: { target: { value: any; }; }) {
const array = [...this.state.items];
const index = array.indexOf(e.target.value)
if (index !== -1) {
array.splice(index, 1);
this.setState({items: array});
}
}
<SortableList items={this.state.items}
onSortEnd={this.onSortEnd}
lockAxis="xy"
axis="xy" />