Data Types in JavaScript
In this tutorial, we will learn about Data Types in JavaScript. The data type of a variable simply tells us what kind of data that variable can store and how much size of data it can hold. Java Script provides us with a variety of Data Types we will learn about these data types.
Primitive data types:
Data Type | Description |
---|---|
String | Represents a sequence of characters e.g. “hello” |
Number | Represents numeric values e.g. 100 |
Boolean | Represents boolean value either false or true |
Undefined | Represents undefined value |
Null | Represents null i.e. no value at all |
Non-primitive data types:
Data Type | Description |
---|---|
Object | Represents instance through which we can access members |
Array | Represents a group of similar values |
RegExp | Represents regular expression |
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