What is the Difference Between String and String in JavaScript?

When it comes to programming languages, the terms “string” and “String” are often used interchangeably. But, in JavaScript, they have different meanings. In this article, we’ll explain the difference between string and String in JavaScript.

Understanding Variables and Datatypes in JavaScript

Before we dive into the difference between string and String in JavaScript, it’s important to understand variables and datatypes in JavaScript. Variables are containers for storing data values. And, datatypes are the type of data that can be stored in a variable.

In JavaScript, there are five types of datatypes: number, string, Boolean, object, and null. The string datatype is used to store text. It can be any combination of letters, numbers, and symbols.

The Difference Between String and String in JavaScript

In general, the string (with a small ‘s’) denotes a primitive, while String (with an uppercase ‘S’) denotes an object. A primitive is a basic data type that is not an object and has no methods. An object is a collection of properties and methods.

String Primitive

The string primitive is a data type that is used to store text. It can be any combination of letters, numbers, and symbols. A string primitive is a value and not an object. As a result, it does not have any methods.

String Object

The String object is a wrapper for the primitive string data type. It is an object that provides methods for manipulating strings. The String object is created using the new keyword.

For example, if you wanted to create a new String object, you would use the following code:

var myString = new String(“Hello World!”);

The String object has several methods that can be used to manipulate strings. For example, the toUpperCase() method can be used to convert a string to uppercase.

Conclusion

In JavaScript, the terms “string” and “String” have different meanings. The string (with a small ‘s’) denotes a primitive, while String (with an uppercase ‘S’) denotes an object. The string primitive is a data type that is used to store text. It is a value and not an object. The String object is a wrapper for the primitive string data type. It is an object that provides methods for manipulating strings.