On Tue, 14 Aug 2018 05:43:07 -0500
Mark Volkmann <[email protected]> wrote:
> I’m new to Go and I imagine the idea of adding a ternary operator to Go has
> been discussed many times. Rather than repeat that, can someone point me to
> a discussion about why Go doesn’t add this?
> I’m struggling to understand why it is desirable to write code like this:
> if temperature > 100 {color = “red”} else {color = “blue”}
Because ternary expression (and some other often mentioned "go lacks")
unwittingly leads to code like this:
```
$templateParse = sub
{
s/([<>\|])([A-Za-z]+)(\d+)(\.+)/defined($2->[$3])?$1eq'|'?$2->[$3]:length($2->[$3])>length($&)?substr($2->[$3],0,length($&)):$1eq'>'?''x(length($&)-length($2->[$3])).$2->[$3]:$2->[$3].''x(length($&)-length($2->[$3])):defined($$2)?$1eq'|'?$$2:length(
$$2)>length($&)?substr($$2,0,length($&)):$1eq'>'?''x(length($&)-length($$2)).$$2:$$2.''x(length($&)-length($$2)):"BadData$1$2$3."/ego;}
```
Yes, this above is a SINGLE perl line instead of some 120+ lines of go's
"text/template" for similar functionality. Young cocky "pro" wrote this just
because he could. His older self longs much for ternaries, pre/post
increments, do{}while and a few other things but is so happy that young
rookies can't pollute code he is responsible for in ways he himself once
did. ;)
FYC
> R. Mark Volkmann
> Object Computing, Inc.
--
Wojciech S. Czarnecki
<< ^oo^ >> OHIR-RIPE
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