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- function isPlainObject(value) {
- if (value === null || typeof value !== "object") {
- return false;
- }
- const prototype = Object.getPrototypeOf(value);
- if (prototype !== null && prototype !== Object.prototype && Object.getPrototypeOf(prototype) !== null) {
- return false;
- }
- if (Symbol.iterator in value) {
- return false;
- }
- if (Symbol.toStringTag in value) {
- return Object.prototype.toString.call(value) === "[object Module]";
- }
- return true;
- }
- function _defu(baseObject, defaults, namespace = ".", merger) {
- if (!isPlainObject(defaults)) {
- return _defu(baseObject, {}, namespace, merger);
- }
- const object = Object.assign({}, defaults);
- for (const key in baseObject) {
- if (key === "__proto__" || key === "constructor") {
- continue;
- }
- const value = baseObject[key];
- if (value === null || value === void 0) {
- continue;
- }
- if (merger && merger(object, key, value, namespace)) {
- continue;
- }
- if (Array.isArray(value) && Array.isArray(object[key])) {
- object[key] = [...value, ...object[key]];
- } else if (isPlainObject(value) && isPlainObject(object[key])) {
- object[key] = _defu(
- value,
- object[key],
- (namespace ? `${namespace}.` : "") + key.toString(),
- merger
- );
- } else {
- object[key] = value;
- }
- }
- return object;
- }
- function createDefu(merger) {
- return (...arguments_) => (
- // eslint-disable-next-line unicorn/no-array-reduce
- arguments_.reduce((p, c) => _defu(p, c, "", merger), {})
- );
- }
- const defu = createDefu();
- const defuFn = createDefu((object, key, currentValue) => {
- if (object[key] !== void 0 && typeof currentValue === "function") {
- object[key] = currentValue(object[key]);
- return true;
- }
- });
- const defuArrayFn = createDefu((object, key, currentValue) => {
- if (Array.isArray(object[key]) && typeof currentValue === "function") {
- object[key] = currentValue(object[key]);
- return true;
- }
- });
- export { createDefu, defu as default, defu, defuArrayFn, defuFn };
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