Geofencing for the Web

navigator.serviceWorker.register(‘serviceworker.js’).then( function(serviceWorkerRegistration) { serviceWorkerRegistration.geofencing.add( new CircularGeofenceRegion({ name: “myfence”, latitude: 37.421999, longitude: -122.084015, radius: 1000 }), {includePosition: true}).then( function(geofence) { console.log(geofence.id); // If more than just a name needs to be stored with a geofence, now // would be the time to store this in some storage. }, function(error) { // During development it often helps …

ionic emulate “[__NSArrayM localizedDescription]: unrecognized selector sent to instance 0x7fd64840e790”

Got this error when running ionic emulate: 2015-03-16 11:13:24.112 ios-sim[50548:9106309] stderrPath: /Users/bramus/Projects/ionic/todos/platforms/ios/cordova/console.log 2015-03-16 11:13:24.113 ios-sim[50548:9106309] stdoutPath: /Users/bramus/Projects/ionic/todos/platforms/ios/cordova/console.log 2015-03-16 11:13:24.140 ios-sim[50548:9106309] -[__NSArrayM localizedDescription]: unrecognized selector sent to instance 0x7fec20d08400 2015-03-16 11:13:24.140 ios-sim[50548:9106309] *** Terminating app due to uncaught exception ‘NSInvalidArgumentException’, reason: ‘-[__NSArrayM localizedDescription]: unrecognized selector sent to instance 0x7fec20d08400’ *** First throw call stack: ( 0 …

Push Notifications for the Web

self.addEventListener(‘push’, function(event) { // Since there is no payload data with the first version // of push messages, we’ll grab some data from // an API and use it to populate a notification event.waitUntil( fetch(SOME_API_ENDPOINT).then(function(response) { if (response.status !== 200) { // Either show a message to the user explaining the error // or enter …

Quantity Queries for CSS

Styling elements based on the “more than one” and “fewer than two” thresholds is a neat trick, but a flexible “quantity query” interface would accept any quantity. That is, I should be able to style “more than or equal to n” for any value of n. Then I can style “more than or equal to …

The Web’s Grain

Great piece by Frank Chimero. Starts with that nostalgic nineties feel and finds it way to photography, responsive design, and the fact that some websites try to blow you away with their design/technological advancements. “Listen bub,” I say, “it is very impressive that you can teach a bear to ride a bicycle, and it is …