- F# Basic Tutorial
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- F# - Overview
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- F# - Operators
- F# - Decision Making
- F# - Loops
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- F# - Operator Overloading
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F# - Operators Precedence
The following table shows the order of precedence of operators and other expression keywords in the F# language, from lowest precedence to the highest precedence.
Operator | Associativity |
---|---|
as | Right |
when | Right |
| (pipe) | Left |
; | Right |
let | Non associative |
function, fun, match, try | Non associative |
if | Non associative |
→ | Right |
:= | Right |
, | Non associative |
or, || | Left |
&, && | Left |
< op, >op, =, |op, &op | Left |
&&& , |||, ^^^, ~~~, <<<, >>> | Left |
^ op | Right |
:: | Right |
:?>, :? | Non associative |
- op, +op, (binary) | Left |
* op, /op, %op | Left |
** op | Right |
f x (function application) | Left |
| (pattern match) | Right |
prefix operators (+op, -op, %, %%, &, &&, !op, ~op) | Left |
. | Left |
f(x) | Left |
f<types> | Left |
Example
let a : int32 = 20 let b : int32 = 10 let c : int32 = 15 let d : int32 = 5 let mutable e : int32 = 0 e <- (a + b) * c / d // ( 30 * 15 ) / 5 printfn "Value of (a + b) * c / d is : %d" e e <- ((a + b) * c) / d // (30 * 15 ) / 5 printfn "Value of ((a + b) * c) / d is : %d" e e <- (a + b) * (c / d) // (30) * (15/5) printfn "Value of (a + b) * (c / d) is : %d" e e <- a + (b * c) / d // 20 + (150/5) printfn "Value of a + (b * c) / d is : %d" e
When you compile and execute the program, it yields the following output −
Value of (a + b) * c / d is : 90 Value of ((a + b) * c) / d is : 90 Value of (a + b) * (c / d) is : 90 Value of a + (b * c) / d is : 50
fsharp_operators.htm
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