Fix NaN from showing up in empty results

Closes GH-29.
wooorm · Feb 22, 2016 · f915584 · f915584
1 parent 1bb472a
commit f915584
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Showing 5 changed files with 22 additions and 4 deletions.
diff --git a/dist/franc-all.js b/dist/franc-all.js
diff --git a/dist/franc-most.js b/dist/franc-most.js
diff --git a/dist/franc.js b/dist/franc.js
diff --git a/lib/franc.js b/lib/franc.js
@@ -266,7 +266,7 @@ function normalize(value, distances) {
     var length = distances.length;
 
     while (++index < length) {
-        distances[index][1] = 1 - ((distances[index][1] - min) / max);
+        distances[index][1] = 1 - ((distances[index][1] - min) / max) || 0;
     }
 
     return distances;

diff --git a/test/index.js b/test/index.js
@@ -138,6 +138,24 @@ describe('franc.all()', function () {
         }
     );
 
+    it('should return `0` without matches', function () {
+        var result = franc.all('פאר טסי');
+
+        assert(result instanceof Array);
+        assert(result[0][0] === 'und');
+        assert(result[0][1] === 1);
+
+        result = franc.all('פאר טסי', {
+          'minLength': 3
+        });
+
+        assert(result instanceof Array);
+        assert(result[0][0] === 'heb');
+        assert(result[0][1] === 0);
+        assert(result[1][0] === 'ydd');
+        assert(result[1][1] === 0);
+    });
+
     it('should return [["und", 1]] on an undetermined value', function () {
         var result = franc.all('XYZ');