Summary  
This chapter explains how to create JavaScript Symbols with optional descriptive labels using the Symbol() function and how to convert them to strings for printing.

General domain of usage  
Object property keys

### `Symbol()` Function Description:

We can provide a `description` to the `Symbol()` function as an optional argument. This `description` will make our symbols more clear.

The following example creates two symbols: `firstName` and `lastName` with values `Michael` and `Clarke` respectively:

let firstName = Symbol('Michael');
console.log(firstName.toString());
let lastName = Symbol('Clarke');
console.log(lastName.toString());

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The syntax of the JavaScript programming language is the set of rules that defines how a JavaScript program will be written and interpreted (by both the runtime system and by human readers).

JavaScript is dynamically typed (also called loosely typed) scripting language. That is, in javascript variables can receive different data types over time. Datatypes are basically typed of data that can be used and manipulated in a program.

Symbols 2/3

`Symbol()` Function Description:

Oplossing

Symbols 2/3

Symbol() Function Description:

Oplossing

`Symbol()` Function Description: