https://www.w3schools.com › js › js_scope.asp

Learn how to declare and access variables, objects, and functions in JavaScript with different scopes: block, function, and global. See examples, explanations, and tips for using strict mode and avoiding global variables.

https://www.geeksforgeeks.org › how-to-declare-global-variables-in-javascript

In JavaScript, you can declare global variables by simply declaring them outside of any function or block scope. Variables declared in this way are accessible from anywhere within the script. Here’s how you declare global variables: // Declare global variables outside of any function or block scope. var globalVar1 = "Hello";

https://www.delftstack.com › fr › howto › javascript › javascript-global-variable

Ce didacticiel explique comment déclarer des variables globales dans JavaScript. Les variables contiennent les données et les informations, qui peuvent être modifiées à tout moment. En JavaScript, les variables peuvent être déclarées à l’aide de mots-clés tels que const , let et var .

https://stackoverflow.com › questions › 5786851

As the others have said, you can use var at global scope (outside of all functions and modules) to declare a global variable: <script> var yourGlobalVariable; function foo() { // ... } </script> (Note that that's only true at global scope.

https://masteringjs.io › tutorials › fundamentals › global-variable

Learn how to declare and access global variables in JavaScript, and the differences between browser, Node.js, and Webpack environments. See examples, code, and explanations of global scope and file scope.

https://stackoverflow.com › questions › 944273

Just define your variables in global.js outside a function scope: // global.js var global1 = "I'm a global!"; var global2 = "So am I!"; // other js-file function testGlobal { alert(global1); } To make sure that this works you have to include/link to global.js before you try to access any variables defined in that file:

https://javascript.info › global-object

Learn how to use the global object in JavaScript, which provides variables and functions that are available anywhere. Find out the difference between global and local variables, and how to access the global object with window or globalThis.

https://web.dev › articles › global-and-local-scope

JavaScript defines variables of global or local scope: Variables with global scope are available from all other scopes within the JavaScript code. Variables with local scope are available only within a specific local context and are created by keywords, such as var, let, and const.

https://www.freecodecamp.org › news › global-variables-in-javascript-explained

Global Variables in JavaScript Explained. Global variables are declared outside of a function for accessibility throughout the program, while local variables are stored within a function using var for use only within that function’s scope.