I write perl everyday, I never use this stuff.
Same here, I didn't even know about most of these, except the list interpolation trick, "@{[ fncall() ]}", which is pretty common where I work.
Perl secret operators and constants
11–20 of 46 posts
Re: Perl secret operators and constants
#12I write perl everyday, I never use this stuff.
I use a few of them in javascript. In fact, Venus can be shortened to just "+", ie.
+"123234" +"1e29" +"abc" // -> NaN
Re: Perl secret operators and constants
#13Interesting, but the title is misleading. They aren't operators, but rather mostly combinations of operators with potentially useful side effects.
Re: Perl secret operators and constants
#14I used !! in many languages including Perl. Not exactly secret and very useful
Re: Perl secret operators and constants
#15Perl is actually relatively easy to learn and get productive with. You can write it in several transitional styles depending on where you are coming from, and the community doesn't care all that much. It's a little bit like using "Basic English" [1] to program with.
But it's a really deep language, and not necessarily in ways that academic language designers want it to be. Perl always feels more like having a conversation with your computer than programming it. These kinds of operators are like having a whole host of additional highbrow verbs you can use in conversation if you want.
Re: Perl secret operators and constants
#16Perl seems like a great language for a lot of text processing jobs, but while its learning curve isn't too steep, it goes on forever. I will continue to use it for quick little projects like cleaning up excel files, but I don't think I could ever get into things like Perl golf.
Perl golf is meant as a thought exercise. Code should be human readable. The compiler will cope with verbose code just as easily as terse code.
Re: Perl secret operators and constants
#17It's articles like this that give Perl a bad reputation.
Mostly it was all the terrible code that got written in Perl by the first wave of non-programmers to start building web apps.
Re: Perl secret operators and constants
#18I have been using Perl since 1996, but I only use a handful of the secret operators. For me, the power with Perl is CPAN and the stability of Perl 5.
Re: Perl secret operators and constants
#19I write perl everyday, I never use this stuff.
I use a few of them in javascript. In fact, Venus can be shortened to just "+", ie. +"123234" +"1e29" +"abc" // -> NaN
In Perl, no, because + is an unary identity operator, used e.g. to properly leave function call parentheses:
print +(1 + 2) * 3;
print ((1 + 2) * 3);
print (1 + 2) * 3;Re: Perl secret operators and constants
#20These do not look like "operators". They look like combinations of Perl operators that produce a "useful" result. I mean they are built from the basic operators.