What are objects in JavaScript?
In JavaScript, objects are collections of key-value pairs, where keys are strings and values can be any data type.
Can you give me an example of an object?
Sure! Here's a simple object: const person = { name: 'Alice', age: 25, city: 'New York' };
.
How do I access properties of an object?
You can access properties using dot notation or bracket notation. For example, person.name
or person['age']
.
What if a property doesn't exist?
If you try to access a non-existent property, it will return undefined
. You can check if a property exists using the in
operator.
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