60 lines
1.8 KiB
TypeScript
60 lines
1.8 KiB
TypeScript
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// 优雅实现对象操作工具函数集合
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/**
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* 深拷贝对象或数组
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* @param input 需要深拷贝的对象或数组
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* @returns 深拷贝后的新对象/数组
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*/
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export function deepClone<T>(input: T): T {
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if (input === null || typeof input !== 'object') return input;
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if (Array.isArray(input)) return input.map(deepClone) as unknown as T;
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const result = {} as T;
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for (const key in input) {
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if (Object.prototype.hasOwnProperty.call(input, key)) {
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result[key] = deepClone(input[key]);
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}
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}
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return result;
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}
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/**
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* 合并多个对象
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* @param objects 需要合并的对象列表
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* @returns 合并后的对象
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*/
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export function mergeObjects<T>(...objects: Partial<T>[]): T {
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return objects.reduce((acc: Partial<T>, obj) => {
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for (const key in obj) {
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if (Object.prototype.hasOwnProperty.call(obj, key)) {
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if (typeof acc[key] === 'object' && typeof obj[key] === 'object') {
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acc[key] = mergeObjects(acc[key], obj[key]);
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} else {
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acc[key] = obj[key];
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}
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}
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}
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return acc;
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}, {} as Partial<T>) as T;
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}
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/**
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* 获取嵌套对象的属性值
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* @param obj 待操作对象
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* @param path 属性路径（以点分隔）
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* @param defaultValue 默认值
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* @returns 属性值或默认值
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*/
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export function getNestedValue<T, U>(obj: T, path: string, defaultValue: U): U | unknown {
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return path.split('.').reduce((acc: any, key: string) => acc && acc[key], obj) ?? defaultValue;
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}
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/**
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* 判断对象是否为空
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* @param obj 待检查对象
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* @returns 是否为空对象
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*/
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export function isEmptyObject(obj: Record<string, unknown>): boolean {
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return Object.keys(obj).length === 0;
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}
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