Where do we use Regular Expression? And what exactly
Regular Expression means?

Answer Posted / suneel reddy

Regular Expression is used whenever window labels are
changing continuously

example
when u r learing yahoo inbox(79) messages are there

while ur executing Inbox(80)

so window label changed

while running the script it may cause failure

so by defining Regular Expression we can control it

another example

when ur learning lohin page first it is Verify password is
there?
while executing it is invalid username

so label is different
ok na
do u got my point

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