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2026-03-25 14:54:15 +08:00
commit ab4646b43a
827 changed files with 123812 additions and 0 deletions
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+import deepClone from './deepClone';
+
+/**
+ * JS对象深度合并
+ * @param target 目标对象
+ * @param source 源对象
+ * @returns 合并后的对象
+ */
+function deepMerge<T extends object, S extends object>(target: T = {} as T, source: S = {} as S): T & S {
+    target = deepClone(target);
+    if (typeof target !== 'object' || target === null || typeof source !== 'object' || source === null)
+        return target as T & S;
+    const merged: any = Array.isArray(target) ? target.slice() : Object.assign({}, target);
+    for (const prop in source) {
+        if (!Object.prototype.hasOwnProperty.call(source, prop)) continue;
+        const sourceValue = (source as any)[prop];
+        const targetValue = merged[prop];
+        if (sourceValue instanceof Date) {
+            merged[prop] = new Date(sourceValue);
+        } else if (sourceValue instanceof RegExp) {
+            merged[prop] = new RegExp(sourceValue);
+        } else if (sourceValue instanceof Map) {
+            merged[prop] = new Map(sourceValue);
+        } else if (sourceValue instanceof Set) {
+            merged[prop] = new Set(sourceValue);
+        } else if (typeof sourceValue === 'object' && sourceValue !== null) {
+            merged[prop] = deepMerge(targetValue, sourceValue);
+        } else {
+            merged[prop] = sourceValue;
+        }
+    }
+    return merged as T & S;
+}
+
+export default deepMerge;