mapDeep() function
创建一个新数组, 深度优先遍历的Map函数(支持continue和break操作), 可用于insert tree item 和 remove tree item
可遍历任何带有 length 属性和数字键的类数组对象
Signature:
typescript
export declare function mapDeep<T>(tree: T[], iterator: (val: T, index: number, currentArr: T[], tree: T[], parent: T | null, level: number) => {
[k: string | number]: any;
} | boolean, options?: {
childField?: string;
reverse?: boolean;
breadthFirst?: boolean;
}): any[];Parameters
Parameter | Type | Description |
|---|---|---|
tree | T[] | 树形数据 |
iterator | (val: T, index: number, currentArr: T[], tree: T[], parent: T | null, level: number) => { [k: string | number]: any; } | boolean | 迭代函数, 返回值为true时continue, 返回值为false时break |
options | { childField?: string; reverse?: boolean; breadthFirst?: boolean; } | (Optional) 支持定制子元素名称、反向遍历，默认{ childField: 'children', reverse: false, } |
Returns:
any[]
{any[]} 新的一棵树