https://stackoverflow.com › questions › 762011
What is the difference between "let" and "var"? - Stack OverflowThe main difference is scoping rules. Variables declared by var keyword are scoped to the immediate function body (hence the function scope) while let variables are scoped to the immediate enclosing block denoted by { } (hence the block scope).
https://www.programiz.com › javascript › let-vs-var
JavaScript let Vs var (with Examples) - ProgramizLearn the differences between let and var in JavaScript, such as block scope, redeclaration, hoisting and browser support. See examples of how to use let and var in functions, loops and if statements.
https://www.geeksforgeeks.org › difference-between-var-and-let-in-javascript
Difference between var and let in JavaScript - GeeksforGeeksIn JavaScript, we use var, let, and const to create variables. These keywords might seem similar at first, but they control how and where your variables work in your code. Let's explore each one and how they differ from each other. JavaScript var keywordThe var is the oldest keyword to declare a variable in JavaScript. It has the Global scoped or f
https://www.javascripttutorial.net › difference-between-var-and-let
Difference Between var and let in JavaScript - JavaScript TutorialLearn how var and let keywords affect variable scopes, global properties, redeclaration and temporal dead zone in JavaScript. See examples and explanations of the key differences and similarities.
https://developer.mozilla.org › fr › docs › Web › JavaScript › Reference › Statements › let
let - JavaScript | MDN - MDN Web Docslet permet de déclarer des variables dont la portée est limitée à celle du bloc dans lequel elles sont déclarées. Le mot-clé var, quant à lui, permet de définir une variable globale ou locale à une fonction (sans distinction des blocs utilisés dans la fonction).
https://www.delftstack.com › fr › howto › javascript › javascript-let-vs-var
Différence entre Let et Var en JavaScript - Delft StackSi nous déclarons une variable en dehors de la fonction, let et var ont une autre différence majeure entre eux. Si nous utilisons le mot-clé let en dehors de la fonction, une variable locale est créée qui n’est pas accessible de l’extérieur.
https://laconsole.dev › blog › differences-let-var-const-js
Différences entre Let, Var et Const en JavaScript - laConsoleChoisir entre let, var ou const dépend donc de la portée, des mécaniques de redéclaration et réassignation que vous envisagez pour vos variables. Voici un tableau récapitulant ces caractéristiques.
https://masteringjs.io › tutorials › fundamentals › let-vs-var
The Difference Between let and var in JavaScript - Mastering JSLearn the difference between let and var in JavaScript, how they affect variable scope and hoisting. See examples of how to use let and var in blocks, functions and globally.
https://dev.to › man0shr0y › understanding-the-key-differences-let-vs-var-in-javascript...
Understanding the Key Differences: 'let' vs 'var' in JavaScript ...Learn the key differences between let and var in JavaScript, such as scope, hoisting, re-declaration, and loop behavior. See examples and best practices for using let and var in your code.
https://www.w3schools.com › JS › js_let.asp
JavaScript Let - W3SchoolsYou can not accidentally redeclare a variable declared with let. With let you can not do this: let x = "John Doe"; let x = 0; Variables defined with var can be redeclared. With var you can do this: var x = "John Doe"; var x = 0;
