125 lines
3.3 KiB
TypeScript
125 lines
3.3 KiB
TypeScript
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import {
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each as TREE_EACH,
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exclude as TREE_EXCLUDE,
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filter as TREE_FILTER,
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map as TREE_MAP,
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toRows,
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toTree,
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type ToTreeOptions,
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} from '@zhengxs/js.tree';
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/**
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* 数组去重
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*
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* @template T
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* @param {T[]} arr 数组
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*/
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export function unique<T>(arr: T[]) {
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return [...new Set(arr)];
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}
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/**
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* 计算数组平均值
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*
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* @param {number[]} arr 数组
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*/
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export function average(arr: number[]) {
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return arr.reduce((a, b) => a + b) / arr.length;
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}
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/**
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* 行结构 转 树结构
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*
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* @export
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* @template P extends Obj
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* @template R extends Obj = P
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* @param {P[]} params 数据源
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* @param {?ToTreeOptions<R, P>} [options] 其他配置项
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* @returns {*}
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*/
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export function rowsToTree<P extends Obj, R extends Obj = P>(params: P[], options?: ToTreeOptions<R, P>) {
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return toTree<R, P>(params, options);
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}
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/**
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* 树结构 转 行结构
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*
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* @export
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* @template T extends Obj
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* @template U extends Obj
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* @param {T[]} data 数组结构数据
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* @param {?string} [childrenKey] 自定义子节点属性名称
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*/
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export function treeToRows<T extends Obj, U extends Obj>(data: T[], childrenKey?: string): U[] {
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return toRows<T, U>(data, childrenKey);
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}
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/**
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* 修改树内容
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*
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* @export
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* @template T extends Obj
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* @template U extends Obj
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* @param {T[]} data 数组结构数据
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* @param {(data: T, index: number, parents: T[]) => U} callback 处理回调函数，注意：如果返回的对象子级不存在将不进行递归操作
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* @param {?string} [childrenKey] 自定义子节点属性名称
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*/
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export function treeMap<T extends Obj, U extends Obj>(
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data: T[],
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callback: (data: T, index: number, parents: T[]) => U,
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childrenKey?: string,
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): U[] {
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return TREE_MAP<T, U>(data, callback, childrenKey);
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}
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/**
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* 遍历修改所有节点
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*
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* @export
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* @template T extends Obj
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* @param {T[]} data 数组结构数据
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* @param {((data: T, index: number, parents: T[]) => boolean | void)} callback 处理回调函数，返回 `true` 将跳过子级的遍历操作
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* @param {?string} [childrenKey] 自定义子节点属性名称
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*/
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export function treeEach<T extends Obj>(
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data: T[],
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callback: (data: T, index: number, parents: T[]) => boolean,
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childrenKey?: string,
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): T[] {
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return TREE_EACH<T>(data, callback, childrenKey);
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}
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/**
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* 过滤树内容，获取需要的数据
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*
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* @export
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* @template T extends Obj
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* @param {T[]} data 数组结构数据
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* @param {(data: T, index: number, parents: T[]) => boolean} callback 处理回调，注意：如果返回的对象子级不存在将不进行递归操作
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* @param {?(string)} [childrenKey] 自定义子节点属性名称
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*/
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export function treeFilter<T extends Obj>(
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data: T[],
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callback: (data: T, index: number, parents: T[]) => boolean,
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childrenKey?: string,
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): T[] {
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return TREE_FILTER(data, callback, childrenKey);
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}
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/**
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* 过滤树内容，排除不需要的数据
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*
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* @export
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* @template T extends Obj
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* @param {T[]} data 数组结构数据
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* @param {(data: T, index: number, parents: T[]) => boolean} callback 处理回调，返回 true 的数据将被过滤掉
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* @param {?(string)} [childrenKey] 自定义子节点属性名称
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*/
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export function treeExclude<T extends Obj>(
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data: T[],
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callback: (data: T, index: number, parents: T[]) => boolean,
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childrenKey?: string,
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): T[] {
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return TREE_EXCLUDE(data, callback, childrenKey);
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}
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