global scope in javascript

YOU.com answered on July 5, 2020 Popularity 8/10 Helpfulness 2/10

answer global scope in javascript

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global scope in javascript

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// Example of global scope variables and functions

// Global variable
var myGlobalVar = 'Hello, world!';

// Global function
function myGlobalFunction() {
  console.log('This is a global function.');
}

// Usage
console.log(myGlobalVar); // Output: Hello, world!
myGlobalFunction(); // Output: This is a global function.

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Contributed on Sep 12 2023

YOU.com

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const color = 'blue'

const returnSkyColor = () => {
  return color; // blue 
};

console.log(returnSkyColor()); // blue

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Tags: global-scope global-sco

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Contributed on Jul 05 2020

CoriantumrIII

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global and function scope javascript

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//This seems confusing, but if you understamd this, You are strong in hoisting
//this helps confusion b/w (gobal var, function's local var) & execution context

var a = 8; // global var has - 8

function A(){
	var a = 1;
	console.log(a); // 1
	function B(){
		var b = 3;
		a = 77; // replaces A()'s "a" value to 77 but (not the outer var a=8)
		console.log(a,b); // 77,3
		function C(){
			var a = 99;
			b = 1; //replaces "b" to outer B()func so B()'s "b" is 1 now
			c = 98; //globally available
			console.log(a,b,c); // 99,1,98
		}
	C();
	console.log(a,b,c); // 77,1,98
	}
B();
console.log(`a is : ${a}`); //77
};


console.log(`Initially 'a' is : ${a}`); //8
A();
console.log(`now 'a' is : ${a} - outer as global`); //8


//output
//global
	//8
//A
	//1
//B
	//77,3
//A
	//77
//C
	//99,1,98
	//77,1,98
//global
	//8 - outer global variable

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Tags: function functio

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Contributed on Aug 19 2022

Outlander

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global scope in javascript

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