28 lines
866 B
JavaScript
28 lines
866 B
JavaScript
import { isIterateeCall } from '../_internal/isIterateeCall.mjs';
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import { eq } from '../util/eq.mjs';
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function defaults(object, ...sources) {
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object = Object(object);
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const objectProto = Object.prototype;
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let length = sources.length;
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const guard = length > 2 ? sources[2] : undefined;
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if (guard && isIterateeCall(sources[0], sources[1], guard)) {
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length = 1;
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}
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for (let i = 0; i < length; i++) {
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const source = sources[i];
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const keys = Object.keys(source);
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for (let j = 0; j < keys.length; j++) {
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const key = keys[j];
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const value = object[key];
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if (value === undefined ||
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(!Object.hasOwn(object, key) && eq(value, objectProto[key]))) {
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object[key] = source[key];
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}
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}
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}
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return object;
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}
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export { defaults };
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