javascript data types with examples
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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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