For example if I type
var x = 5;
x;
console output is 5 (as expected)
But when I want to start afresh and clear the console(using ctrl+L or clear(); ),the console clears up but x still contains value 5 (as can be checked by typing x in console)
I don't want console to remember any previous data after using clear.How can I do it?
clear() does just that - clears the console.
But to add something new - you can't delete your variables, at least not when they're declared this way. The only 100% sure way of doing this, is simply refreshing the page.
To elaborate: you can delete only object's properties, so if you do this:
x = 5;
delete x; // returns true
It will work, but if you assign your value using var keyword:
var x = 5;
delete x; // returns false
...then you can't delete it.
To better understand what you can and what you can't delete and why - you can read more under this link: http://perfectionkills.com/understanding-delete/.
