Variabel
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console.log("Hello World!");
var firstName = "Harry";
console.log(firstName);
firstName = "Ron";
console.log(firstName);
/* output:
Harry
Ron
*/
x = 100;
var x;
console.log(x);
/* output: 100 */
var x;
x = 100;
console.log(x);
/* output: 100 */
JavaScript
INFO