Monday, May 27, 2024

What is Data Type in Java Script

   
Data Type in Java Script

In JavaScript, data types classify values into specific categories based on how they are stored and manipulated.

Types of Data Types:

1.Primitive Types: These are fundamental data types that represent single values.

  • String: Represents text data enclosed within single or double quotes.
  • Boolean: Represents a logical value, either true or false.
  • Number: Represents numeric data, including integers and floating-point numbers.
  • Null: Represents the intentional absence of any object value.
  • Undefined: Represents a variable that has been declared but not assigned a value yet.

2.Composite Types: These are complex data types composed of multiple values or other data types.

  • Object: Represents a collection of key-value pairs, allowing for complex data structures.
  • Array: Represents an ordered collection of values, accessible by numeric indices.
  • Function: Represents a block of reusable code that can be invoked with specified parameters.

Understanding data types in JavaScript is crucial for effective programming, as it dictates how values are stored, manipulated, and interacted with within the codebase.

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