vConsole
A lightweight, extendable front-end developer tool for mobile web page
...After importing vConsole, logs will be printed to both front-end console and native console. Some useful vConsole properties and methods are available for plugin development. You can destroy an vConsole instance object and remove vConsole panel from document. You can also add a new plugin to vConsole. Duplicate plugin will be ignored. Create an vConsole plugin object, bind plugin events to this object, and add this object to vConsole. While installing and running a plugin, vConsole will trigger some events to allow a plugin customizing it's functions.