Re^2: Shortcut operator for $a->{'b'}=$b if $b;


Perl: the Markov chain saw
	PerlMonks

Re^2: Shortcut operator for $a->{'b'}=$b if $b;

by Aristotle (Chancellor)

on Sep 20, 2005 at 20:35 UTC ( [id://493596]=note: print w/replies, xml )

Need Help??

in reply to Re: Shortcut operator for $a->{'b'}=$b if $b;
in thread Shortcut operator for $a->{'b'}=$b if $b;

It doesn’t “abort” the assignment – the logical OR is evaluated first, then possibly the last, and if that is evaluated, it prevents the assignment from evaluating at all. And thus it works.

Makeshifts last the longest.

Comment on Re^2: Shortcut operator for $a->{'b'}=$b if $b; Download Code

Replies are listed 'Best First'.
Re^3: Shortcut operator for $a->{'b'}=$b if $b; by CountZero (Bishop) on Sep 20, 2005 at 21:15 UTC
And thereby logical false values do not get assigned, which is not as per the specs. CountZero "If you have four groups working on a compiler, you'll get a 4-pass compiler." - Conway's Law	[reply]
Re^4: Shortcut operator for $a->{'b'}=$b if $b; by Roy Johnson (Monsignor) on Sep 20, 2005 at 22:21 UTC
You should re-read the OP's post. It says "The point is to have no key 'b' exist if $b is false." Caution: Contents may have been coded under pressure.	[reply]

In Section Seekers of Perl Wisdom

Log In^?

Domain Nodelet^?

www.com | www.net | www.org

Node Status^?

node history
Node Type: note [id://493596]
help

Chatterbox^?

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

Other Users^?

Others musing on the Monastery: (6)

As of 2024-04-19 11:14 GMT

Sections^?

Information^?

Find Nodes^?

Leftovers^?

Today I Learned

Voting Booth^?

No recent polls found