Component
Component class
component.ns() : Namespace
Get the collar.js namespace of this component
Return
| Type | Description |
|---|---|
| Namespace | collarjs namespace |
Get the namespace object of store component
let component = app.getComponentByName('store');
const ns = component.ns();
ns.map('double', s => {
return s.new({
value: s.get('value') * 2
});
})
component.input() : Node
Get the input node of the component
Return
| Type | Description |
|---|---|
| Node | the input node of the component |
Double the value payload of all signals from input node.
let component = app.getComponentByName('store');
component.input()
.map('double', s => {
return s.new({
value: s.get('value') * 2
});
});
component.output() : Node
Get the output node of the component
Return
| Type | Description |
|---|---|
| Node | the output node of the component |
Double the value payload of all signals from input node and pipe it to output.
let component = app.getComponentByName('store');
component.input()
.map('double', s => {
return s.new({
value: s.get('value') * 2
});
})
.to(component.output());
component.handleMsg(msg, done)
Send a message to the component input, and get its output from the output
Arguments
| Arguement | Type | Description |
|---|---|---|
| msg | Object | input signal payload |
| done | Function | result handler |
Send an 'INCREMENT' action to the store component, and get the result
let component = app.getComponentByName('store');
component.handleMsg({
actionType: 'INCREMENT'
}, (error, result) => {
if (error) {
return console.error(error.message);
}
console.log(result);
})