It’s nothing more than a reminder that if you do this:
var x=5;
var x;
alert(x);
Result will be 5.
If you re-declare variable in some other languages for example – result will be undefined, or NaN, but not in javascript.
It’s nothing more than a reminder that if you do this:
var x=5;
var x;
alert(x);
Result will be 5.
If you re-declare variable in some other languages for example – result will be undefined, or NaN, but not in javascript.