How Can The Properties Of Two JavaScript Objects Be Merged Dynamically Using JavaScript?

One way to merge properties of two JavaScript objects dynamically is by using the Object.assign() method.

Here’s an example:

const obj1 = { name: 'John', age: 25 };
const obj2 = { city: 'New York', country: 'USA' };

const mergedObj = Object.assign({}, obj1, obj2);



{ name: 'John', age: 25, city: 'New York', country: 'USA' }

In this example, we create two objects obj1 and obj2. Then, we use Object.assign() to merge the properties of obj1 and obj2 into a new empty object {}. The properties of obj2 overwrite the properties of obj1 with the same name. The merged object is stored in the mergedObj variable.

Note that Object.assign() creates a shallow copy of the objects, and it only copies enumerable and own properties from the source objects. If you have nested objects or arrays as properties, they will not be deeply copied.

You can also use the spread syntax (...) to achieve the same result:

const mergedObj = { ...obj1, ...obj2 };

Both methods work for merging two objects dynamically, regardless of the number of properties they have or their values.

About the Author Rex

I'm a passionate tech blogger with an insatiable love for programming! From my early days tinkering with code, I've delved into web dev, mobile apps, and AI. Sharing insights and tutorials with the world is my joy, connecting me to a global community of like-minded tech enthusiasts. Python holds a special place in my heart, but I embrace all challenges. Constantly learning, I attend tech conferences, contribute to open-source projects, and engage in code review sessions. My ultimate goal is to inspire the next generation of developers and contribute positively to the ever-evolving tech landscape. Let's code together!