Consistency applies a small set of language constructs and symbols across many programming situations. It keeps code focused on the problem rather than on satisfying the compiler. section 3.1.1
F# demonstrates consistency through several related choices:
- Functions and parameterless values use the same let-binding shape: let name parameters = expression and let name = expression. section 3.1.1
- The type keyword defines records, classes, interfaces, and unions instead of requiring separate feature-specific keywords. section 3.1.1
- General-purpose language features replace one-off constructs, while defaults such as public visibility remove common boilerplate. section 3.1.1
A compact function
let addTenThenDouble theNumber = let addedTen = theNumber + 10 let answer = addedTen * 2 printfn $"({theNumber} + 10) * 2 is {answer}" answer This concise form avoids unnecessary parentheses, type annotations, semicolons, explicit construction syntax, and return statements. section 3.1.1
let myFunction arg1 arg2 = #1 let mySimpleValue = 99 #2
Compare the shared declaration pattern for a function and a simple value. section 3.1.1
