Craig
Bloodworth
There are
many data sources that would help us understand the world around us that are
still only exporting .csv so how do you automate these? Web Data Connector
There are
resources out there. You need the Simulator and SDK. Don’t be afraid to google
and use other people’s code.
The WDC
allows you to use a connection that is hosted on a webpage (and been written by
someone else) and works just like a Driver for a database.
HTML – the building
blocks of the page
CSS – the styling
of the page
Javascript –
the engine that is running in the background.
In
Javascript there are Variables (like a Parameter in Tableau), Objects (a
Variable that has many properties) and Functions (the elements that do the
work)
HTML DOM –
native set of functions to Javascript
J Query – a
bit quicker to write
Event
Listeners – waiting for certain user actions like a click
Arrays –
like a shopping list
AJAX – how to
connect to an external web service
JSON –
hopefully the data will be in JSON as it is made for Javascript
Loops &
Logic – need to be able to loop through those
Recommended read: Javasccript
& Jquery by Jon Duckett
Major
components: 1. User interface, 2. API interactions & config, 3. Decalre
column names and data types, 4. Build data table
Major
Compnents in coded order: 1. Declare column
names and data types, 2. build data table, 3. API interactions &
config, 4. User interface.
Build
through adjusting an existing WDC to help you see the changes you are making to
see the effects.
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