Comments (5)
Constant is also the name of a type that is a monad. I don't know if that
should be mentioned on the doc though
On Tue, Jul 26, 2016, 2:06 AM Olivier Gérardin [email protected]
wrote:
I think it's not correct to define a constant as a variable that can only
be assigned once; that's the mechanism that most programming languages use
to implement constants, but it's not a definition.
I would just define it as a symbolic name for a value.—
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from functional-programming-jargon.
I guess the current definition is more of const
than the concept. If we define it as a symbolic name for a value then what distinguishes it from a variable?
from functional-programming-jargon.
The only difference is that a variable's value can change over time. But we know that in pure functional world there is no such thing as a variable anyway :)
from functional-programming-jargon.
In a pure functional world variables are like math variables. If you say x
= 1 then later say it's 2 you're just being a ridiculous lier
On Thu, Jul 28, 2016, 12:25 AM Olivier Gérardin [email protected]
wrote:
The only difference is that a variable's value can change over time. But
we know that in pure functional world there is no such thing as a variable
anyway :)—
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from functional-programming-jargon.
That is, they can be replaced with the values that they represent without affecting the result.
true, but this will work if only n
is known value:
const fact = n => n < 2 ? 1 : n * fact(n-1)
from functional-programming-jargon.
Related Issues (20)
- Add a section on higher-kinded types HOT 2
- Explanation of `lens` HOT 2
- TOC refers to absent anchor tags HOT 2
- Idempotent inaccurate HOT 2
- Volunteering - Polish translation HOT 4
- Closure appears twice in the document HOT 2
- Avoid polluting globals HOT 2
- Add memoization HOT 1
- Add Identity Function
- Category, Functor, Monad, Comonad, etc. should mention algebraic laws HOT 1
- Natural transformations HOT 1
- Functors are maps for categories HOT 3
- Category example is a preorder/partial order HOT 1
- Suggestions from HN HOT 1
- Add Total Functions HOT 1
- Organize for extensibility HOT 3
- Functor example does not make any sense HOT 2
- Explain why HOT 1
- Monad chain does exist now in JS HOT 3
- Is array concatenation a monoid?
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