polyfill-io-feature-detection - npm Package Compare versions

Comparing version 1.1.13 to 1.1.14

index.js

@@ -15,3 +15,7 @@ 'use strict';
         if (contains(fullFeature, "~")) {
-            console.warn('Feature ' + fullFeature + ' can not be detected because it has not JavaScript API.');
+            if (contains(fullFeature, "Intl.~locale")) {
+                supportedFeature = checkIntlLocale(window, fullFeature);
+            } else {
+                console.warn('Feature ' + fullFeature + ' can not be detected because it has not JavaScript API.');
+            }
         } else {
@@ -33,8 +37,8 @@ // Get the feature and the container Object
                 }
-                // If the feature is not supported by the browser, then add it to polyfill it
-                if (supportedFeature === false) {
-                    arrayUnsupportedFeatures.push(fullFeature);
-                }
             }
         }
+        // If the feature is not supported by the browser, then add it to polyfill it
+        if (supportedFeature === false) {
+            arrayUnsupportedFeatures.push(fullFeature);
+        }
     }
@@ -44,2 +48,35 @@ return arrayUnsupportedFeatures;
 
+function checkIntlLocale(obj, feature) {
+    var localeArray = feature.split("Intl.~locale");
+    var locale = "";
+    if (localeArray.length === 2) {
+        var tempLocale = localeArray[1];
+        if (tempLocale && tempLocale !== "") {
+            locale = tempLocale.replace(".", "");
+
+            if (!("Intl" in obj &&
+                "Collator" in obj.Intl &&
+                "supportedLocalesOf" in obj.Intl.Collator &&
+                obj.Intl.Collator.supportedLocalesOf(locale).length === 1 &&
+                "DateTimeFormat" in obj.Intl &&
+                "supportedLocalesOf" in obj.Intl.DateTimeFormat &&
+                obj.Intl.DateTimeFormat.supportedLocalesOf(locale).length === 1 &&
+                "NumberFormat" in obj.Intl &&
+                "supportedLocalesOf" in obj.Intl.NumberFormat &&
+                obj.Intl.NumberFormat.supportedLocalesOf(locale).length === 1)) {
+                return false;
+            } else {
+                return true;
+            }
+        } else {
+            console.warn('Feature ' + feature + ' has wrong Intl.~locale.XX format. For example Intl.~locale.en-US');
+        }
+    } else {
+        console.warn('Feature ' + feature + ' has wrong Intl.~locale format. For example Intl.~locale.en-US');
+    }
+    // if any error, returns false
+    return false;
+}
+
+
 // https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/String/includes
@@ -46,0 +83,0 @@ function contains(origin, search, start) {

package.json

 {
   "name": "polyfill-io-feature-detection",
-  "version": "1.1.13",
+  "version": "1.1.14",
   "description": "Feature detection in the browser before loading polyfill using services like polyfill.io",
@@ -9,3 +9,5 @@ "license": "MIT",
   "scripts": {
+    "pretest": "npm install",
     "test": "mocha test/node/detectBrowserUnsupportedFeatures.test.js",
+    "pretestLoaders": "npm install",
     "testLoader": "mocha test/node/polyfillLoader.test.js"
@@ -12,0 +14,0 @@ },

test/node/detectBrowserUnsupportedFeatures.test.js

@@ -141,3 +141,10 @@ /*
 
+    it('should detect Intl.~locale.en-US as unsupported feature.', function () {
+        // Available polyfills: https://github.com/Financial-Times/polyfill-service/blob/master/docs/assets/compat.json
+        var features = "Intl.~locale.en-US";
+        expect(polyfillLoader.detectBrowserUnsupportedFeatures(features)).to.be.deep.eq(["Intl.~locale.en-US"]);
+    });
 
+
+
 });

test/utils/base.Config.js

@@ -66,2 +66,8 @@ // Testing Configuration Template
     window.Intl = function () { };
+    window.Intl.Collator = function () { };
+    window.Intl.DateTimeFormat = function () { };
+    window.Intl.NumberFormat = function () { };
+    window.Intl.Collator.supportedLocalesOf = function (a) { return [] };
+    window.Intl.DateTimeFormat.supportedLocalesOf = function (a) { return []; };
+    window.Intl.NumberFormat.supportedLocalesOf = function (a) { return []; };
     window.JSON = function () { };
@@ -68,0 +74,0 @@ window.Map = function () { };

test/utils/IE11.Config.js

@@ -66,2 +66,9 @@ // Testing Configuration for IE 11
     window.Intl = function () { };
+    window.Intl.Collator = function () { };
+    window.Intl.DateTimeFormat = function () { };
+    window.Intl.NumberFormat = function () { };
+    window.Intl.Collator.supportedLocalesOf = function (a) { return [] };
+    window.Intl.DateTimeFormat.supportedLocalesOf = function (a) { return []; };
+    window.Intl.NumberFormat.supportedLocalesOf = function (a) { return []; };
+
     window.JSON = function () { };
@@ -68,0 +75,0 @@ //window.Map = function () { };

No alert changes

Improved metrics

Total package byte prevSize

41474

increased by6.98%

Lines of code

744

increased by7.36%

No dependency changes