Most head-slapping feature in a language
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@Forogar and I were having a chat about unintended programming features (ahem) due to things like: Javascript's truthy:
"1" == 1 is trueRexx:" Hello " == "Hello" and 0.0 == 0 is not the same as 0 == 0.0SQL:Len("hello") = Len("hello ")I'm just wondering what other family favourites there are out there. (Edited because clearly I’ve lost track of what’s up and what’s down)cheers Chris Maunder
Try the Predict the Output Challenge (C#)[^]. It shows some fun C# quirks (especially part 1) with types, enumerables etc. :D
Best, Sander sanderrossel.com Continuous Integration, Delivery, and Deployment arrgh.js - Bringing LINQ to JavaScript Object-Oriented Programming in C# Succinctly
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@Forogar and I were having a chat about unintended programming features (ahem) due to things like: Javascript's truthy:
"1" == 1 is trueRexx:" Hello " == "Hello" and 0.0 == 0 is not the same as 0 == 0.0SQL:Len("hello") = Len("hello ")I'm just wondering what other family favourites there are out there. (Edited because clearly I’ve lost track of what’s up and what’s down)cheers Chris Maunder
I'm sure your first one should be: ``` "1" == 1 is true ``` `===` specifically takes type into account. Javascript's type co-ercion can be a win or a lose, depending on what you want. If type matters, use `===` and `!==`
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@Forogar and I were having a chat about unintended programming features (ahem) due to things like: Javascript's truthy:
"1" == 1 is trueRexx:" Hello " == "Hello" and 0.0 == 0 is not the same as 0 == 0.0SQL:Len("hello") = Len("hello ")I'm just wondering what other family favourites there are out there. (Edited because clearly I’ve lost track of what’s up and what’s down)cheers Chris Maunder
That kind of things already existed when our ancestors began to cast logic into silicon[^]. Of course, there also were well designed CPUs[^] that had exactly 256 opcodes, with only 0x68 being reserved as prefix for future expansions of the instruction set. And of course there are the opcodes 0xE0 - 0xEF, the 'Set X Register' instruction for registers 0x0 - 0xF, short SEX. Absolutely no confusion here.
I have lived with several Zen masters - all of them were cats. His last invention was an evil Lasagna. It didn't kill anyone, and it actually tasted pretty good.
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@Forogar and I were having a chat about unintended programming features (ahem) due to things like: Javascript's truthy:
"1" == 1 is trueRexx:" Hello " == "Hello" and 0.0 == 0 is not the same as 0 == 0.0SQL:Len("hello") = Len("hello ")I'm just wondering what other family favourites there are out there. (Edited because clearly I’ve lost track of what’s up and what’s down)cheers Chris Maunder
Chris Maunder wrote:
SQL:
Len("hello") = Len("hello ")That is a fun one that I came across a while ago. for some reason SQL Server ignores the trailing spaces hence they match. LEN (Transact-SQL) - SQL Server | Microsoft Docs[^]
Every day, thousands of innocent plants are killed by vegetarians. Help end the violence EAT BACON
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@Forogar and I were having a chat about unintended programming features (ahem) due to things like: Javascript's truthy:
"1" == 1 is trueRexx:" Hello " == "Hello" and 0.0 == 0 is not the same as 0 == 0.0SQL:Len("hello") = Len("hello ")I'm just wondering what other family favourites there are out there. (Edited because clearly I’ve lost track of what’s up and what’s down)cheers Chris Maunder
erm, typo?
"1" === 1 is false
"1" == 1 is true (truthy rather) -
Officially, I actively choose to not slap myself becuz of a (programming) language's nuance(s). :doh:
The best way to improve Windows is run it on a Mac. The best way to bring a Mac to its knees is to run Windows on it. ~ my brother Jeff
Re-read the OP. Chris didn't state he was going to slap his own head .... :laugh:
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@Forogar and I were having a chat about unintended programming features (ahem) due to things like: Javascript's truthy:
"1" == 1 is trueRexx:" Hello " == "Hello" and 0.0 == 0 is not the same as 0 == 0.0SQL:Len("hello") = Len("hello ")I'm just wondering what other family favourites there are out there. (Edited because clearly I’ve lost track of what’s up and what’s down)cheers Chris Maunder
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@Forogar and I were having a chat about unintended programming features (ahem) due to things like: Javascript's truthy:
"1" == 1 is trueRexx:" Hello " == "Hello" and 0.0 == 0 is not the same as 0 == 0.0SQL:Len("hello") = Len("hello ")I'm just wondering what other family favourites there are out there. (Edited because clearly I’ve lost track of what’s up and what’s down)cheers Chris Maunder
In Fortran (at least in the old days, Fortran IV and thereabouts) has no reserved words. Spaces have no significance. So you could declare a variable named INTEGER REAL INTEGER INTEGER = 3.14 or a subroutine named FUNCTION to be invoked by CALL FUNCTION(...) The standard loop construct is the DO loop, but DO U BLEP RECISION IF is not the start of a loop. Rather, you could make a comparison with the above variable IF (IF.GT.INTEGER) ... In my student days, there was a single course teaching Fortran. We made it a habit to solve the execizes using predefined identifiers only. Sort of like OCCC, but it took far less effort to obfuscate Fortran.
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The point of === is that "1" == 1 but "1" !== 1, that is, "1" === 1 will return false, due to the differing types
This is the kind of crap you get in a weakly typed language.
".45 ACP - because shooting twice is just silly" - JSOP, 2010
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You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
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When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013 -
@Forogar and I were having a chat about unintended programming features (ahem) due to things like: Javascript's truthy:
"1" == 1 is trueRexx:" Hello " == "Hello" and 0.0 == 0 is not the same as 0 == 0.0SQL:Len("hello") = Len("hello ")I'm just wondering what other family favourites there are out there. (Edited because clearly I’ve lost track of what’s up and what’s down)cheers Chris Maunder
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@Forogar and I were having a chat about unintended programming features (ahem) due to things like: Javascript's truthy:
"1" == 1 is trueRexx:" Hello " == "Hello" and 0.0 == 0 is not the same as 0 == 0.0SQL:Len("hello") = Len("hello ")I'm just wondering what other family favourites there are out there. (Edited because clearly I’ve lost track of what’s up and what’s down)cheers Chris Maunder
In the old fortran stuff: 3 = 9 And change the value of 3 to 9 (Because some nimrod decided to declare numeric constants as variables?) LMAO. But they fix everything by adding an =, so we get =, ==, ===... I am waiting to read some code:
if (x ======= y) // equal on 7 planes of existence
and
if (x ======== y) // A fuzzy version of the above allowing for LESS Equality to be Equal, LMAO
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@Forogar and I were having a chat about unintended programming features (ahem) due to things like: Javascript's truthy:
"1" == 1 is trueRexx:" Hello " == "Hello" and 0.0 == 0 is not the same as 0 == 0.0SQL:Len("hello") = Len("hello ")I'm just wondering what other family favourites there are out there. (Edited because clearly I’ve lost track of what’s up and what’s down)cheers Chris Maunder
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erm, typo?
"1" === 1 is false
"1" == 1 is true (truthy rather)I don’t even know anymore. I’m so confused.
cheers Chris Maunder
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Re-read the OP. Chris didn't state he was going to slap his own head .... :laugh:
Y'all need to re-read my comment. Never did imply nor explicitly express Chris did or would do that. :doh:
The best way to improve Windows is run it on a Mac. The best way to bring a Mac to its knees is to run Windows on it. ~ my brother Jeff
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@Forogar and I were having a chat about unintended programming features (ahem) due to things like: Javascript's truthy:
"1" == 1 is trueRexx:" Hello " == "Hello" and 0.0 == 0 is not the same as 0 == 0.0SQL:Len("hello") = Len("hello ")I'm just wondering what other family favourites there are out there. (Edited because clearly I’ve lost track of what’s up and what’s down)cheers Chris Maunder
I just loved seeing C/C++ code from colleagues too lazy to comment out a block of code (and letting it sit there for years) via: #if 0 ... #endif I should just go back to clean it out, but now it's nostalgic for me. :-)
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I don’t even know anymore. I’m so confused.
cheers Chris Maunder
Wait 5 years. It will be:
"1" ============== 1
As in, "I really really really really really really really really really want to know if it's really really really really really really really really somewhat mildly truthy."
Cheers, Mike Fidler "I intend to live forever - so far, so good." Steven Wright "I almost had a psychic girlfriend but she left me before we met." Also Steven Wright "I'm addicted to placebos. I could quit, but it wouldn't matter." Steven Wright yet again.
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I had a colleague who insisted on occasionally writing the (perfectly valid but ummm counter-intuitive) form
index[array]
in C. He also worked out some multi-dimensional extensions, which my marginal brain is too small to contain. And yes, he did have a shot at the The International Obfuscated C Code Contest[^] Cheers, Peter
Software rusts. Simon Stephenson, ca 1994. So does this signature. me, 2012
Yes, I was (long ago) proudly shown char c = i["Some string"];
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I had a colleague who insisted on occasionally writing the (perfectly valid but ummm counter-intuitive) form
index[array]
in C. He also worked out some multi-dimensional extensions, which my marginal brain is too small to contain. And yes, he did have a shot at the The International Obfuscated C Code Contest[^] Cheers, Peter
Software rusts. Simon Stephenson, ca 1994. So does this signature. me, 2012
Yes, I was (long ago) proudly shown char c = i["Some string"]; - perfectly valid if not immediately obvious to the beginner.
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I had a colleague who insisted on occasionally writing the (perfectly valid but ummm counter-intuitive) form
index[array]
in C. He also worked out some multi-dimensional extensions, which my marginal brain is too small to contain. And yes, he did have a shot at the The International Obfuscated C Code Contest[^] Cheers, Peter
Software rusts. Simon Stephenson, ca 1994. So does this signature. me, 2012
I had never thought about pointer arithmetic being commutative before... seems consistent at least. int index = 1; char *address = "String"; index[address] is the same as *(index + address) address[index] is the same as *(address + index) + implicitly includes the size of the base data type. (char) If this was attempted with variables instead of constants, you might end up with memory protection issues. Most OSes would not want you to start a loop by loading memory address 1 into a register. They would let you load the memory address of "String"
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@Forogar and I were having a chat about unintended programming features (ahem) due to things like: Javascript's truthy:
"1" == 1 is trueRexx:" Hello " == "Hello" and 0.0 == 0 is not the same as 0 == 0.0SQL:Len("hello") = Len("hello ")I'm just wondering what other family favourites there are out there. (Edited because clearly I’ve lost track of what’s up and what’s down)cheers Chris Maunder
On Error Resume Next
/thread
Did you ever see history portrayed as an old man with a wise brow and pulseless heart, weighing all things in the balance of reason? Is not rather the genius of history like an eternal, imploring maiden, full of fire, with a burning heart and flaming soul, humanly warm and humanly beautiful? --Zachris Topelius Training a telescope on one’s own belly button will only reveal lint. You like that? You go right on staring at it. I prefer looking at galaxies. -- Sarah Hoyt
