consider using first argument as number precision

currently it is decimal offset
defunctzombie · Mar 16, 2013 · 214d0b4 · 214d0b4
1 parent 0a55466
commit 214d0b4
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Showing 2 changed files with 14 additions and 4 deletions.
diff --git a/num.js b/num.js
@@ -12,6 +12,12 @@ function Num(num, prec) {
         return self;
     }
 
+    if (num instanceof int) {
+        this._int = num;
+        this._precision = prec || 0;
+        return self;
+    }
+
     // convert to a string
     num = '' + num;
 
@@ -28,7 +34,11 @@ function Num(num, prec) {
     }
 
     this._int = int(num);
-    this._precision = prec || precision;
+    this._precision = precision;
+
+    if (prec && prec > 0) {
+        this.set_precision(prec);
+    }
 }
 
 // TODO (shtylman) cleanup

diff --git a/test/build.js b/test/build.js
@@ -36,8 +36,8 @@ test('build', function() {
 });
 
 test('build#precision', function() {
-    assert.equal(num(15, 1), '1.5');
-    assert.equal(num(1234567890, 5), '12345.67890');
-    assert.equal(num(-122, 4), '-0.0122');
+    assert.equal(num(15, 1), '15.0');
+    assert.equal(num(1234567890, 5).div(10e4), '12345.67890');
+    assert.equal(num(-122, 4).div(10e3), '-0.0122');
 });