Accessing and Modifying Properties

Concepts:

• Properties: Attributes associated with an object that hold specific values.
• Dot Notation: Uses a period (.) to access properties, e.g., object.property.
• Bracket Notation: Uses square brackets [] to access properties, e.g., object['property'].

Steps:

Accessing Values:

1. Use dot notation or bracket notation to retrieve a property's value.
2. For example, to get the name property of the person object using dot notation: person.name
3. To get the age property of the person object using bracket notation: person['age']

Modifying Values:

1. Use dot notation or bracket notation to update a property's value.
2. Assign a new value to the property using the = operator.
3. For example, to change the name property of the person object to "John" using dot notation: person.name = "John"
4. To change the age property of the person object to 25 using bracket notation: person['age'] = 25

JavaScript Example:

// Define an object
const person = {
  name: "Alice",
  age: 22
}

// Accessing Properties
console.log(person.name); // Output: Alice
console.log(person['age']); // Output: 22

// Modifying Properties
person.name = "Bob";
person['age'] = 23;

// Output the modified values
console.log(person.name); // Output: Bob
console.log(person['age']); // Output: 23

Tips for Accessibility and Ease of Use:

• Use meaningful property names to make code more readable.
• Consider using constants for property names to prevent accidental modifications.
• Avoid using dot notation when accessing properties with special characters or spaces. In these cases, bracket notation is more suitable.