Use 'instanceOf' to make the use of 'new' optional (#191)

* Use 'instanceOf' to make the use of 'new' optional * Should work as usual when used without new * v1.4.2
fingerprintjs · Oct 3, 2016 · cfe05db · cfe05db
1 parent 0a30285
commit cfe05db
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Showing 3 changed files with 10 additions and 1 deletion.
diff --git a/fingerprint2.js b/fingerprint2.js
@@ -54,6 +54,9 @@
     };
   }
   var Fingerprint2 = function(options) {
+
+    if (!(this instanceof Fingerprint2)) return new Fingerprint2(options)
+
     var defaultOptions = {
       swfContainerId: "fingerprintjs2",
       swfPath: "flash/compiled/FontList.swf",

diff --git a/package.json b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "fingerprintjs2",
-  "version": "1.4.1",
+  "version": "1.4.2",
   "description": "Modern & flexible browser fingerprinting library",
   "main": "dist/fingerprint2.min.js",
   "devDependencies": {

diff --git a/specs/specs.js b/specs/specs.js
@@ -43,6 +43,12 @@ describe("Fingerprint2", function () {
     });
   });
 
+  describe("without new keyword", function () {
+    it("creates a new instance of FP2", function () {
+      expect(Fingerprint2()).not.toBeNull();
+    });
+  })
+
   describe("get", function () {
     describe("default options", function () {
       it("calculates fingerprint", function (done) {