Re^2: How should I understand scalar(%hash) results?

by TVSET (Chaplain)

on Oct 05, 2004 at 08:47 UTC ( [id://396521]=note: print w/replies, xml )

Need Help??

Oh, thanks. I guess I missed this bit somehow...

Comment on Re^2: How should I understand scalar(%hash) results?

Replies are listed 'Best First'.
Re^3: How should I understand scalar(%hash) results? by thospel (Hermit) on Oct 05, 2004 at 09:08 UTC
In normal programs the only interesting thing about this is that it's guaranteed to return false for an empty hash and something that's true otherwise. So you can check if a hash is empty or not by simply using the hash name in boolean context (which is a scalar context): `if (%hash) { ..do something for a filled %hash... } else { ...do something for an empty %hash... }` [download]	[reply] [d/l]

Domain Nodelet^?

Node Status^?

node history
Node Type: note [id://396521]
help

Chatterbox^?

How do I use this? • Last hour • Other CB clients

Other Users^?

Others exploiting the Monastery: (4)

As of 2024-04-25 22:26 GMT

Sections^?

Information^?

Find Nodes^?

Leftovers^?

Voting Booth^?

No recent polls found