@modern-kit/utils/dist/object/merge/index.mjs

modern-kit/utils

import { isPlainObject } from '../../validator/isPlainObject/index.mjs';
import { cloneDeep } from '../../common/cloneDeep/index.mjs';
import { objectKeys } from '../objectKeys/index.mjs';
import '../../validator/isReference/index.mjs';
import '../../validator/isPrimitive/index.mjs';

function merge(target, source) {
  const mergedTarget = cloneDeep(target);
  const innerMerge = (target2, source2) => {
    const sourceKeys = objectKeys(source2);
    for (let i = 0; i < sourceKeys.length; i++) {
      const key = sourceKeys[i];
      const sourceValue = source2[key];
      const targetValue = target2[key];
      if (Array.isArray(sourceValue)) {
        if (Array.isArray(targetValue)) {
          target2[key] = innerMerge(targetValue, sourceValue);
        } else {
          target2[key] = innerMerge([], sourceValue);
        }
      } else if (isPlainObject(sourceValue)) {
        if (isPlainObject(targetValue)) {
          target2[key] = innerMerge(targetValue, sourceValue);
        } else {
          target2[key] = innerMerge({}, sourceValue);
        }
      } else if (targetValue === void 0 || sourceValue !== void 0) {
        target2[key] = sourceValue;
      }
    }
    return target2;
  };
  return innerMerge(mergedTarget, source);
}

export { merge };
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