https://www.w3schools.com › JS › js_const.asp

JavaScript const variables must be assigned a value when they are declared: Correct. const PI = 3.14159265359; Incorrect. const PI; PI = 3.14159265359; When to use JavaScript const? Always declare a variable with const when you know that the value should not be changed. Use const when you declare: The keyword const is a little misleading.

https://developer.mozilla.org › fr › docs › Web › JavaScript › Reference › Statements › const

const. La déclaration const permet de créer une constante nommée accessible uniquement en lecture. Cela ne signifie pas que la valeur contenue est immuable, uniquement que l'identifiant ne peut pas être réaffecté. Autrement dit la valeur d'une constante ne peut pas être modifiée par des réaffectations ultérieures.

https://www.javascripttutorial.net › javascript-const

ES6 provides a new way of declaring a constant by using the const keyword. The const keyword creates a read-only reference to a value. By convention, the constant identifiers are in uppercase. Like the let keyword, the const keyword declares blocked-scope variables.

https://developer.mozilla.org › en-US › docs › Web › JavaScript › Reference › Statements › const

The const declaration declares block-scoped local variables. The value of a constant can't be changed through reassignment using the assignment operator, but if a constant is an object, its properties can be added, updated, or removed.

https://stackoverflow.com › questions › 21237105

I've recently come across the const keyword in JavaScript. From what I can tell, it is used to create immutable variables, and I've tested to ensure that it cannot be redefined (in Node.js):

https://www.w3schools.com › jS › js_array_const.asp

JavaScript Array Const. Previous Next . In 2015, JavaScript introduced an important new keyword: const. It has become a common practice to declare arrays using const: Example. const cars = ["Saab", "Volvo", "BMW"]; Try it Yourself » An array declared with const cannot be reassigned: Example.

https://www.w3schools.com › jsref › jsref_const.asp

The const statement declares a variable. Variables are containers for storing information. Creating a variable in JavaScript is called "declaring" a variable: const name = "Volvo";

https://playcode.io › javascript › const

Const is a way of declaring a variable that cannot be reassigned. It is a great way to ensure that your code is clean and maintainable by making sure that your variables are not changed accidentally. This tutorial will teach you all about the const keyword and how to use it in your JavaScript code.