Getting Started #
Write your applications like you make the concept for your application. Normaly you draw a few components and some arrows to connect the components, to describe your intention. Why you don’t do the same to write your app or component? Use existing web-components and wire them to build up your application.
Furo FBP 101 #
In furo-FBP you connect events from one component to methods of anohter component. If you get this simple concept, you have understand already 90% of the things you need to write a program.
Connecting things #
We have a lightswitch
furo-button and a light bulb
light-bulb which we want to toggle when the switch is clicked.
When the button fires a click event, the action will trigger the toggle method of the
light-bulb because it is
connected by the wire
This doesnt look very impressive in the first moment. But as you can see, there is no scripting involved and there are no id’s assigned to the components.
- Click on demo to see the flow in action.
- Click on source to see the corresponding source.
- Click on flow to see the resulting flow of the source.
Multiple targets #
A wire can have as many targets as you want.
So the wire
--lightSwitchClicked can trigger multiple targets if you want.
When you press the button, all elements which are connected to the wire will trigger the defined function. In this example the last light-bulb is not connected.
Name of the wire
You can name a wire with alphanumeric characters without a “space”.
It is a good practice to name the wire by the thing that happened like
--saveClickedor by the values it will transport like
--responseData. The dashes are not needed, but it makes the code easier to read too.
Name of the wire
Sometimes people tend to name the wire by the target action that the wire will trigger (
--saveData). THIS IS NOT a good idea and will result in unreadable flows.
Assume that your team want to introduce some other features, like playing a animation.
1 2 3 4 5
<!-- bad wire name--> <some-animation fn-play="--saveData"></some-animation> <!-- good wire name --> <some-animation fn-play="--saveClicked"></some-animation>
Multiple sources #
A wire is not limited as a point to point connection and can have multiple sources.
It doesn’t matter if you press the first or the second light switch.
Both of them will trigger the wire
--lightSwitchClicked, which will invoke the
toggle method on the light-bulb.
Multiple sources and targets #
A wire is not limited as a point to point connection and can have multiple sources and also have multiple targets.
If you look at the source of this example, it doesn’t look very complex, the resulting flow of this example is quite complex.
Triggering multiple wires from one source event #
Sometimes you want to trigger multiple wires from one source event.
You can do this by separating them with a comma.
When you press the button, it will trigger the
--lightSwitchClicked and the
Receiving multiple wires on a target #
You can receive from multiple wires by comma separating them.
*The light bulb on the top right will be triggered by the
--intervallPulse wire *