Add documentation for datatypes

README.md

@@ -19,7 +19,7 @@ The Sabre compiler emits JavaScript, until the language has matured sufficiently
 
 fn main() {
     let num = 10
-    print(fib(num))
+    println(fib(num))
 }
 
 fn fib(n) {

docs/SUMMARY.md

@@ -5,3 +5,4 @@
   - [Hello World!](./introduction/hello-world.md)
 - [Common language concepts](./concepts/SUMMARY.md)
   - [Variables](./concepts/variables.md)
+  - [Data Types](./concepts/datatypes.md)

docs/concepts/datatypes.md

@@ -0,0 +1,61 @@
+# Datatypes
+
+> **Note:** Due to the fact that Sabre currently emits javascript, static types are not needed, as of yet. They will however be introduced soon, once a statically typed backend is used.
+
+## The Integer type
+
+The `integer` datatype represents a number. The JavaScript backend interprets any integer as a `Number` type.
+
+```
+fn main() {
+    let sum = 1 + 2
+    println("1 + 2 is ", sum)
+}
+```
+
+```
+$ sabre build main.sb -o main.js
+$ node main.js
+1 + 2 is 3
+```
+
+## The String type
+
+A string is a sequence of characters.
+
+```
+fn main() {
+    let name = "Jon"
+    println("Hello " + name)
+}
+```
+
+```
+$ sabre build main.sb -o main.js
+$ node main.js
+Hello Jon
+```
+
+## The Array type
+
+Arrays represent a sequence of values. They can hold any number of values of a specific type.
+
+> **NOTE:** Currently, there is no type-checking involved when creating arrays. There will be, once a type system is in place, so don't get too attached to mixing and matching element types. ;)
+
+```
+fn main() {
+    let fruits = ["Banana", "Apple", "Pineapple"]
+
+    for fruit in fruits {
+        println(fruit)
+    }
+}
+```
+
+```
+$ sabre build main.sb -o main.js
+$ node main.js
+Banana
+Apple
+Pineapple
+```

docs/concepts/variables.md

@@ -9,7 +9,7 @@ To declare a variable, the `let` keyword is used.
 fn main() {
     let x = 10
     let y = 5
-    print(x + y)
+    println(x + y)
 }
 ```
 

docs/introduction/hello-world.md

@@ -21,7 +21,7 @@ Now open the main.sb file you just created and enter the following code:
 
 ```
 fn main() {
-    print("Hello, world!")
+    println("Hello, world!")
 }
 ```
 

examples/fib.sb

@@ -1,6 +1,6 @@
 fn main() {
     let num = 10
-    print(fib(num))
+    println(fib(num))
 }
 
 fn fib(n) { 

examples/greeter.sb

@@ -1,5 +1,5 @@
 fn main() {
-    print(greet("World"))
+    println(greet("World"))
 }
 
 fn greet(name) {

examples/hello_world.sb

@@ -1,3 +1,3 @@
-fn main(n) {
-    print("Hello World")
+fn main() {
+    println("Hello World")
 }

examples/leapyear.sb

@@ -10,8 +10,8 @@ fn main() {
     let ly = divisibleBy4 && divisibleBy100
 
     if ly || divisibleBy400 {
-        print("Leap year")
+        println("Leap year")
     } else {
-        print("Not a leap year")
+        println("Not a leap year")
     }
 }

examples/playground.sb

@@ -1,5 +1,5 @@
 fn main() {
     let x = 10
     x = 5
-    print("Hello World!")
+    println("Hello World!")
 }