jinyaqiu
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90 lines
2.2 KiB
TypeScript
90 lines
2.2 KiB
TypeScript
// 定义源数据类型
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type SourceRegion = {
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name: string;
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shortCode?: string;
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regions?: SourceRegion[];
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[key: string]: any; // 允许其他自定义属性
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};
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// 定义目标数据类型
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type TargetRegion = {
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name: string;
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value?: string | number; // 添加 value 字段
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children?: TargetRegion[];
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[key: string]: any;
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};
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/**
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* 将任意结构的地区数据转换为统一的嵌套结构
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* @param data 源数据数组
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* @param keys 字段映射配置
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* @returns 转换后的数据
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*/
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export function convertRegions(
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data: SourceRegion[],
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keys: {
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nameKey?: string;
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valueKey?: string; // 新增：指定 value 字段
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regionsKey?: string;
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childrenKey?: string;
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} = {}
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): TargetRegion[] {
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const {
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nameKey = 'name',
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valueKey = 'shortCode', // 默认使用 shortCode 作为 value
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regionsKey = 'regions',
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childrenKey = 'children',
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} = keys;
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return data.map(item => {
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const converted: TargetRegion = {
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name: item[nameKey] as string,
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};
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// 如果指定了 valueKey 且源数据中存在该字段，则添加 value
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if (valueKey && item[valueKey] !== undefined) {
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converted.value = item[valueKey];
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}
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if (item[regionsKey]) {
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const children = convertRegions(
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item[regionsKey] as SourceRegion[],
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keys // 传递 keys 以保持配置一致
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);
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if (children.length > 0) {
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converted[childrenKey] = children;
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}
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}
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return converted;
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});
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}
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/***
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* 使用示例
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* regionsData 是原数据
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*
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*
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* const transformed = convertRegions(regionsData, {
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* nameKey: 'name', // 源数据中表示“名称”的字段
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* regionsKey: 'regions', // 源数据中表示“子级区域”的字段
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* childrenKey: 'children' // 输出结构中表示“子级区域”的字段
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* });
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*
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*
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* 输出示例：
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* [
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* {
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* "name": "北京市",
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* "value": "BJ",
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* "children": [
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* {
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* "name": "东城区",
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* "value": "Dongcheng"
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* },
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* // ...
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* ]
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* }
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* ]
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*/ |