https://developer.mozilla.org › fr › docs › Web › JavaScript › Reference › Statements › 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. Une constante ne peut pas ...

https://stackoverflow.com › questions › 33040703

doSomething() // works! function doSomething() {} A function expression, that is: [const | let | var] = function () {} (or () =>. Is the creation of an anonymous function (function () {}) and the creation of a variable, and then the assignment of that anonymous function to that variable.

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

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 » Cannot be Reassigned. An array declared with const cannot be reassigned: Example. const cars = ["Saab", "Volvo", "BMW"];

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 › fr › docs › Web › JavaScript › Guide › Functions

Une fonction est une procédure JavaScript, un ensemble d'instructions effectuant une tâche ou calculant une valeur. Afin d'utiliser une fonction, il est nécessaire de l'avoir auparavant définie au sein de la portée dans laquelle on souhaite l'appeler.

https://www.freecodecamp.org › news › understanding-functions-in-javascript

Functions are one of the building blocks of JavaScript programming for creating web applications. You can think of functions as a way to group a set of instructions together and execute them as a single unit. In this article, we will explore the basics of functions in JavaScript and how you can use them effectively in your code. Function Syntax.

https://dev.to › skinnypetethegiraffe › function-or-const-which-do-you-prefer-typescript...

function or const, which do you prefer? (TypeScript/JavaScript) # typescript # javascript # webdev # discuss. When it comes to writing a function, which style do you prefer? const doSomethingCool: string = () => 'yes' OR. function doSomethingCool(): string { return 'yes'; } My Thoughts.

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";