What are the basic data types in JavaScript?

In JavaScript, there are several basic data types that you can use to store different kinds of values. These include:

1. Number: Represents both integer and floating-point numbers. For example, 42, 3.14.
2. String: Represents a sequence of characters. Strings can be enclosed in single or double quotes. For example, "Hello, World!", 'JavaScript'.
3. Boolean: Represents a logical entity and can have only two values: true and false.
4. Undefined: Represents a variable that has been declared but not assigned a value. When you declare a variable without assigning it a value, it automatically gets the value of undefined.
5. Null: Represents the intentional absence of any object value. It is a special keyword that represents an empty or non-existent value.
6. Symbol (introduced in ECMAScript 2015): Represents a unique and immutable data type that may be used as an identifier for object properties.

Additionally, JavaScript has a compound data type called Object, which can store collections of data and more complex entities.

For example:

let num = 42; // Number
let str = "Hello"; // String
let bool = true; // Boolean
let und;
console.log(und); // Undefined
let n = null; // Null
let sym = Symbol("id"); // Symbol
let obj = { key: "value" }; // Object

In the context of cloud computing, JavaScript is often used on the client-side for web applications, and it can also be used on the server-side with technologies like Node.js. For deploying and managing Node.js applications in the cloud, you might consider services like Tencent Cloud's Cloud Functions or Cloud Container Service, which provide scalable and flexible environments for running JavaScript code.