Tutorials with Creative Demos
Editorial Staff 
We provide MQTT client example using JavaScript, which can be executed on browsers. Furthermore, for beginner, there is a free MQTT server to use for testing. Finally, we suggest when to use MQTT on applications. All codes here are not complicated, so you can easily understand even though you are still students in school. To … Read more
Cordova Geolocation gets latitude, longitude, and even altitude. It is enough to locate you on Google Maps. Cordova let you use JavaScript to reach the goal in mobile phones, instead of native codes on Android or iOS. The article guide you to go through Cordova project building process for an example about GPS locating and … Read more
With Camera Plugin, Cordova APPs can take a picture by JavaScript. As known, Cordova create APPs by using HTML, CSS, and JavaScript, but without plugins Cordova can not communicate with device modules or native components in mobile phones. The article gives a brief example to help you understand all the stuff. All codes here are … Read more
This issue might happen when you build an Cordova APP on Android 9, but can’t send messages to non-SSL websites. This article discusses about why the limit exists, how to permit clear text, and what correct process we should do. All codes here are not complicated, so you can easily understand even though you are … Read more
Cordova APPs perform AJAX login to get session data. If session exists, APPs always start on home page; otherwise, jump to login page. Where do session data store? How is page redirection working with help of a database class using Cordova WebSQL? Finally, we provide the procedure to build an APP in brief. All codes … Read more
When Cordova builds a hybrid APP requiring small-scale storage upon WebView, WebSQL is default and will be an appropriate database to use without any plugins. In the article, we have a database class design for WebSQL, which is efficient to deal with async features of WebSQL APIs. All codes here are not complicated, so you … Read more
If wondering which SSL certificate has lower price, you should take a glance at moving HTTP to free HTTPS in this article. HTTPS using SSL certificates transfer sensitive data in safe way. Unfortunately, most website founders who are not aware of free approaches spend money upon this topic. Here we introduce Let’s Encrypt, which an … Read more
Asynchronous features of WebSQL API block developing speed in CRUD. We provide a class from which database objects is derived to make CRUD efficient. Especially for Cordova, WebSQL play a role in small-scale data storage such as session data. All codes here are not complicated, so you can easily understand even though you are still … Read more
Cordova should make jQuery AJAX work successfully in built Android APPs. You can test distinct AJAX methods here, and learn how to fix cross-domain blocking issue. Moreover, we review for you the Cordova building process that have been mentioned in our previous post. All codes here are not complicated, so you can easily understand even … Read more
jQuery Mobile developed for phones can be converted into APPs by Cordova building. In the article, 3 steps through an example of web pages lead you to quickly start learning Cordova concepts and tips in building APPs. All codes here are not complicated, so you can easily understand even though you are still students in … Read more