WebAPI/Navigator.hasFeature: Difference between revisions

WebAPI/Navigator.hasFeature (view source)

507 bytes added , 14 March 2014

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@@ Line 48: / Line 48: @@
 * api.window.Navigator.mozMobileConnections
 * api.window.XMLHttpRequest.mozSystem
+== Examples ==
+The first example checks to see if we're running on the low-memory Tarako device:
+  navigator.getFeature("hardware.memory").then(function(mem) {
+    if (mem <= 128) {
+      alert("We are in a memory constrained world!");
+    }
+  });
+The second example checks to see if the privileged FM Radio API is available.
+  navigator.hasFeature("api.window.Navigator.mozFMRadio").then(enabled) {
+    if (enabled) {
+      alert("FM Radio support detected, my privileged app will work!");
+    }
+  });