Function mergeObjects

Merges two objects, preferring values from the first object when both are defined. If a property is undefined in the first object, the value from the second object is used.

Example

const obj1 = { a: 1, b: undefined };
const obj2 = { b: 2, c: 3 };
const result = mergeObjects(obj1, obj2);
// result is { a: 1, b: 2, c: 3 }
Copy

Remarks

• Properties from obj1 take precedence over obj2 when both are defined.
• The function creates a new object and does not modify the input objects.
• Nested objects and arrays are not deeply merged, only their references are copied.