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