Merge pull request #6 from purescript/rem

Add remainder operator

Author: paf31

docs/Math.md

@@ -151,6 +151,16 @@ tan :: Radians -> Number
 
 Returns the tangent of the argument.
 
+#### `(%)`
+
+``` purescript
+(%) :: Number -> Number -> Number
+```
+
+_left-associative / precedence 7_
+
+Computes the remainder after division, wrapping Javascript's `%` operator.
+
 #### `e`
 
 ``` purescript
@@ -216,3 +226,4 @@ sqrt2 :: Number
 The square root of two, around 1.41421.
 
 
+

src/Math.js

@@ -45,6 +45,12 @@ exports.pow = function (n) {
   };
 };
 
+exports["%"] = function(n) {
+  return function(m) {
+    return n % m;
+  };
+};
+
 exports.round = Math.round;
 
 exports.sin = Math.sin;

src/Math.purs

@@ -60,6 +60,11 @@ foreign import sqrt :: Number -> Number
 -- | Returns the tangent of the argument.
 foreign import tan :: Radians -> Number
 
+infixl 7 %
+
+-- | Computes the remainder after division, wrapping Javascript's `%` operator.
+foreign import (%) :: Number -> Number -> Number
+
 -- | The base of natural logarithms, *e*, around 2.71828.
 foreign import e :: Number