javascript data types with examples

javascript is a dynamically typed language, which means that the data type of a variable is determined at runtime. there are several data types in javascript:

1. **primitive data types**:
- **number**: represents numeric data, including integers and floating-point numbers. example: `let num = 10;`
- **string**: represents textual data enclosed in single or double quotes. example: `let name = 'john';`
- **boolean**: represents a logical value `true` or `false`. example: `let isstudent = true;`
- **undefined**: represents a variable that has been declared but not assigned a value. example: `let age;`
- **null**: represents an intentional absence of any object value. example: `let car = null;`

2. **composite data types**:
- **object**: represents a collection of key-value pairs. example:

- **array**: represents a list of elements, accessible by index. example:


3. **special data types**:
- **function**: represents a block of code that can be executed. example:


4. **type coercion**:
javascript is a loosely typed language, which allows for implicit type conversion. for example:


5. **checking data types**:
you can use the `typeof` operator to check the data type of a variable:


6. **type conversion**:
you can explicitly convert data types using functions like `parseint()`, `parsefloat()`, `string()`, `boolean()`, etc.

here is an example that demonstrates the usage of different data types in javascript:

by understanding and utilizing different data types in javascript, you can effectively manage and manipulate data in your code.

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