123 - Variable-1
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| Language | JavaScript |
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| Owner | academydicoding |
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| Modified | |
| Visibility | Public |
var firstName = "Harry";
console.log(firstName);
firstName = "Ron";
console.log(firstName);
/* output:
Harry
Ron
*/
x = 100;
var x;
console.log(x);
/* output: 100 */
y = 100;
let y;
console.log(y);
/* ReferenceError: z is not defined */
const z = 100;
console.log(z);
z = 200;
console.log(z)
/* TypeError: Assignment to constant variable. */
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