downtime

Do background work during browser idle time.

``

js

const downtime = require("downtime")





API



$3



- Schedule

callback

 to run during next idle period

- Return an

 for cancellation purposes

- Callback is invoked with an

IdleDeadline

 object

js

downtime.do(function(deadline) {

  // Do background work

})





$3



- Cancel callback represented by

js

var id = downtime.do(doBackgroundWork)

downtime.dont(id)





Notes



- Downtime uses

requestIdleCallback and cancelIdleCallback` where available
- Fallback technique is based on this gist
- For best performance, avoid DOM manipulation during idle time

Compatibility

- Native: caniuse: requestIdleCallback
- Fallback: any JavaScript environment