What is the difference between boolean value true() and true.

RE: What is the difference between boolean value true() and true.

paragk998 — Thu, 04 Oct 2018 06:26:52 GMT

I think basic difference is Time and Space complexity
both are different types and used accordingly,

consider a scenario- create an array of {true,true,.......true} of length 50
common approach is repeat(true,50) which takes 5 to 10 Ms to execute the code but use less memory resource.

instead if you use apply(fn!true,enumerate(50)) it takes <1 Ms to execute
so this improves the performance, but use more memory resource because we are calling 3 functions

but apply function need function as 1st parameter but not the value.
so both true() and true looks same but used according to requirements.

RE: What is the difference between boolean value true() and true.

aloks0189 — Thu, 04 Oct 2018 01:42:26 GMT

Hi Shubham Aware

true is a literal value of type boolean whereas true() is a function which returns it's output as true (literal) of type boolean.

It's similar as null and null() function

Please follow this link to have more understanding about literals

RE: What is the difference between boolean value true() and true.

harrisont606 — Wed, 03 Oct 2018 21:04:16 GMT

They work the same, but you should pick one and use it consistently to improve the readability of your code.

RE: What is the difference between boolean value true() and true.

Rebecca Trinklein — Wed, 03 Oct 2018 18:27:45 GMT

As far as I know, while true() and true are functionally the same in that they both result in the boolean value true, it is best to use true. Using true(), while effective, will evaluate the function each time it is used and make a small but existent negative impact on performance.

RE: What is the difference between boolean value true() and true.

Larry Nguyen — Wed, 03 Oct 2018 15:11:29 GMT

I'm going to guess that there is no logical difference. The Appian documentation states: "true() returns true" and "Returns the Boolean value true."

docs.appian.com/.../fnc_logical_true.html

RE: What is the difference between boolean value true() and true.

ajinkyab277 — Wed, 03 Oct 2018 15:08:26 GMT

I thinks true() is function where as true is literal value . apart from that I done see there is any difference as we can use true and true() interchangeably

RE: What is the difference between boolean value true() and true.

charlesm492 — Wed, 03 Oct 2018 15:06:11 GMT

I have always wondered this as well, other than the obvious answer that one is a function. Maybe something like if you wanted to use the function version as an input for a looping function? Though, I can't really think of any case where that might be necessary.

RE: What is the difference between boolean value true() and true.

laurenc20 — Wed, 03 Oct 2018 14:15:20 GMT

I also don't know of any differences. They should be able to be used in place of each other and the system still work as you intended it.

RE: What is the difference between boolean value true() and true.

philips397 — Wed, 03 Oct 2018 14:11:41 GMT

That is the only difference that I am aware of. One is a Boolean, the other a function. I am curious if anyone else has anything to say.

RE: What is the difference between boolean value true() and true.

Mike Lasutschinkow — Wed, 03 Oct 2018 12:30:39 GMT

As you have said, the main difference is the type, true being a Boolean and true() being a function (that returns a boolean).

I suspect that true() and false() exist to give the developer the option to use booleans in places where functions are expected, but this is speculation.