Merge pull request #11 from evert/debugger

Nice debugger output

CHANGELOG.md

@@ -11,7 +11,7 @@ Changelog
 * Added `toSource()` and `fromSource()` methods to easily get access to the
   underlying bigint.
 * `Money.value` is now private.
-
+* Nice v8 debugger output. Shows the currency + the symbol.
 
 0.2.0 (2018-12-12)
 ------------------

src/money.ts

@@ -196,4 +196,15 @@ export class Money {
     return m;
 
   }
+
+  /**
+   * This function creates custom output in console.log statements.
+   */
+  [Symbol.for('nodejs.util.inspect.custom')](): string {
+
+    // The 4-digit choice is arbitrary. Might revise this.
+    return this.toFixed(4) + ' ' + this.currency;
+
+  }
+
 }

test/money.ts

@@ -335,4 +335,14 @@ describe('Money class', () => {
 
   });
 
+  describe('Debug output', () => {
+
+    it('should return a meaningful value', () => {
+
+      const m = new Money(1, 'USD');
+      expect((<any> m)[Symbol.for('nodejs.util.inspect.custom')]()).to.equal('1.0000 USD');
+
+    });
+
+  });
 });