This is a short example aimed at making you comfortable with setting up and running the web application examples. First, make sure you have Sencha CMD installed. If not, you may get it from here: https://www.sencha.com/products/extjs/cmd-download/.

Next, you will need to set up your workspace by simply extracting the ExtJS library to code/webgis_examples/ext. When ready, your ext folder contents should look like this:

All the examples are located in the code directory in this chapter's resources. In order to launch our Hello World example, simply navigate to code/webgis_examples/apps/01_hello_world in your CMD and then run the following command:

sencha app watch

When you navigate to http://localhost:1841/apps/01_hello_world/, you should see our Hello World application (this is a default empty app that Sencha CMD generates):