Dot Notation Access

Dot notation is the most common way to access properties in JSON objects. It's clean, readable, and works great for known property names.

Basic Dot Notation

Chaining Dot Notation

Chain multiple dots to access deeply nested data:

Accessing Arrays with Dot Notation

Combine dot notation with array indices:

When Dot Notation Fails

Dot notation doesn't work when:

• Property name has spaces or special characters
• Property name starts with a number
• Property name is a reserved word
• Property name is stored in a variable

Exercise: Navigate Structure

Exercise: Array in Object

Key Points

• Dot notation: object.property
• Chain for nested access: obj.a.b.c
• Combine with arrays: obj.arr[0].prop
• Use bracket notation for special property names
• Keep property names simple for dot notation