money-math - npm Package Compare versions

Comparing version 0.1.0 to 0.2.0

money.js

@@ -102,2 +102,8 @@ (function (exports) {
 
+    exports.subtract = function (a, b) {
+        return exports.centsToAmount(
+            bignum(exports.amountToCents(a)).sub(exports.amountToCents(b)).toString()
+        );
+    };
+
     exports.mul = function (a, b) {
@@ -104,0 +110,0 @@ return exports.centsToAmount(

package.json

 {
     "name": "money-math",
-    "version": "0.1.0",
+    "version": "0.2.0",
     "description": "bignum-based arbitrary precision operations on currency amounts \"XXX.YY\"; because floats are BAD for representing money",
@@ -25,2 +25,3 @@ "main": "money.js",
         "bigint",
+        "bignum",
         "arithmetic",
@@ -27,0 +28,0 @@ "arbitrary",

README.md

@@ -0,5 +1,7 @@
+[![Build Status](https://secure.travis-ci.org/ikr/money-math.png)](http://travis-ci.org/ikr/money-math)
+
 # What does it do?
 
 Adds, multiplies the currency _amounts,_ and calculates percentages of _amounts._ The result of
-each of those operations is also an _amount_: a string, strictly matching the `/^\-?\d+\.\d\d$/`
+each of those operations is also an _amount:_ a string, strictly matching the `/^\-?\d+\.\d\d$/`
 pattern, like "0.25", "1000.00", or "-42.10".
@@ -6,0 +8,0 @@

spec/money.spec.js

@@ -133,2 +133,14 @@ (function () {
 
+    describe("money.subtract()", function () {
+        it("calculates difference 1", function () {
+            expect(
+                money.subtract("700000000000000000000.00", "700000000000000000000.00")
+            ).toBe("0.00");
+        });
+
+        it("calculates difference 2", function () {
+            expect(money.subtract("-10.00", "5.00")).toBe("-15.00");
+        });
+    });
+
     describe("money.mul()", function () {
@@ -135,0 +147,0 @@ it("multiplies two decimals 1", function () {

No alert changes

Improved metrics

Total package byte prevSize

14179

increased by5.16%

Lines of code

262

increased by6.07%

Number of lines in readme file

55

increased by3.77%

No dependency changes