What is var???

Answer 1

https://www.sololearn.com/learn/JavaScript/1128/

Answer 2

thanks

Answer 3

var x = 100;
document.write(x);
/*___________*/
explained :
var = variables
x = it is variables
100 = it is Values (x)
document.write(x) = print (100) in website

Answer 4

thanks!

Answer 5

you're welcome