diff options
author | Ha-Duong, NGUYEN <cmpitg@gmail.com> | 2015-08-03 15:55:38 +0700 |
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committer | Ha-Duong, NGUYEN <cmpitg@gmail.com> | 2015-08-03 15:55:38 +0700 |
commit | efb338608b3b6e5af3652e71aa7fb85bdf5917b9 (patch) | |
tree | 9cfd545d71004bcb6552d11f74e67e4ec1c2ad73 | |
parent | dbdde5134b4c5777467a81c8fdf2128cb44edacc (diff) |
scala: consistent code format
-rw-r--r-- | scala.html.markdown | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/scala.html.markdown b/scala.html.markdown index 8d93169b..62af31b6 100644 --- a/scala.html.markdown +++ b/scala.html.markdown @@ -173,8 +173,8 @@ def sq(x: Int) = x * x // Compiler can guess return type is Int // Functions can have default parameters: def addWithDefault(x: Int, y: Int = 5) = x + y -addWithDefault(1, 2) // => 3 -addWithDefault(1) // => 6 +addWithDefault(1, 2) // => 3 +addWithDefault(1) // => 6 // Anonymous functions look like this: @@ -195,8 +195,8 @@ sq(10) // => 100 val addOne: Int => Int = _ + 1 val weirdSum: (Int, Int) => Int = (_ * 2 + _ * 3) -addOne(5) // => 6 -weirdSum(2, 4) // => 16 +addOne(5) // => 6 +weirdSum(2, 4) // => 16 // The return keyword exists in Scala, but it only returns from the inner-most @@ -206,9 +206,9 @@ weirdSum(2, 4) // => 16 def foo(x: Int): Int = { val anonFunc: Int => Int = { z => if (z > 5) - return z // This line makes z the return value of foo! + return z // This line makes z the return value of foo! else - z + 2 // This line is the return value of anonFunc + z + 2 // This line is the return value of anonFunc } anonFunc(x) // This line is the return value of foo } @@ -361,7 +361,7 @@ class Dog(br: String) { val mydog = new Dog("greyhound") println(mydog.breed) // => "greyhound" -println(mydog.bark) // => "Woof, woof!" +println(mydog.bark) // => "Woof, woof!" // The "object" keyword creates a type AND a singleton instance of it. It is @@ -543,8 +543,8 @@ implicit def myImplicitFunction(breed: String) = new Dog("Golden " + breed) // By itself, implicit keyword doesn't change the behavior of the value, so // above values can be used as usual. -myImplicitInt + 2 // => 102 -myImplicitFunction("Pitbull").breed // => "Golden Pitbull" +myImplicitInt + 2 // => 102 +myImplicitFunction("Pitbull").breed // => "Golden Pitbull" // The difference is that these values are now eligible to be used when another // piece of code "needs" an implicit value. One such situation is implicit @@ -572,8 +572,8 @@ def foo[T : C] = ... // implicit conversion of type A => B, where A is the type of obj, and B has a // method called "method", that conversion is applied. So having // myImplicitFunction above in scope, we can say: -"Retriever".breed // => "Golden Retriever" -"Sheperd".bark // => "Woof, woof!" +"Retriever".breed // => "Golden Retriever" +"Sheperd".bark // => "Woof, woof!" // Here the String is first converted to Dog using our function above, and then // the appropriate method is called. This is an extremely powerful feature, but |