Overwrites the default window.alert method with API html5 notification
Web JavaScript APIs that you can use in WebKit WebView Android for your applications web oriented
See this example to get network type and max download
var getconnection = window.navigator.connection, connectiontype = getconnection.type;
var maxdownload = getconnection.downlinkMax
var logConnectionType = function(){
alert('Connection type: ' + connectiontype + 'Max Download: ' + maxdownload);
}
logConnectionType();
navigator.connection.addEventListener('change', logConnectionType);
Demo jsfiddle: https://jsfiddle.net/15wy4pa6/
Find Elements in DOM using prototype object property in pure javascript
See this demo
Export, store, and import data from localStorage, IndexedDB, or Excel with this JavaScript SQL database for browser and Node.js