[Cycle.js] From toy DOM Driver to real DOM Driver
This lessons shows how we are able to easily swap our toy DOM Driver with the actual Cycle.js DOM Driver, a more solid, more flexible, more efficient implementation.
<!DOCTYPE html> <html> <head> <script src="https://cdnjs.cloudflare.com/ajax/libs/rxjs/4.0.6/rx.all.js"></script> <script src="https://rawgit.com/cyclejs/cycle-core/v6.0.3/dist/cycle.js"></script> <script src="https://rawgit.com/cyclejs/cycle-dom/v9.1.0/dist/cycle-dom.js"></script> <meta charset="utf-8"> <title>JS Bin</title> </head> <body> <div id="app"></div> </body> </html>
const {h, h1, span, makeDOMDriver} = CycleDOM;
// Logic (functional)
function main(sources) {
const mouseover$ = sources.DOM.select('span').events('mouseover');
const sinks = {
DOM: mouseover$
.startWith(null)
.flatMapLatest(() =>
Rx.Observable.timer(0, 1000)
.map(i =>
h1({style: {background: 'red'}}, [
span([
`Seconds elapsed: ${i}`
])
])
)
),
Log: Rx.Observable.timer(0, 2000).map(i => 2*i),
};
return sinks;
}
// Effects (imperative)
function consoleLogDriver(msg$) {
msg$.subscribe(msg => console.log(msg));
}
const drivers = {
DOM: makeDOMDriver('#app'),
Log: consoleLogDriver,
}
Cycle.run(main, drivers);
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