Helper for creating auto-calling functions
The wheel was invented a long time ago: repeat. What's the diff?
- Repeater stores the last call params and uses them for next invocations.
- Inherits target's iface.
- Allows to combine
manualandautomatedcalls.
import repeater from '@antongolub/repeater'
const target = step => { this.i += step }
const context = { i: 0 }
const delay = 1000
const rep = repeater(target, delay, context)
rep(2)
// Imagine, 5 seconds later new 'manual' call occurs
setTimeout(() => rep(1), 5000)
// ~10 seconds after start:
setTimeout(() => console.log(context.i), 10000) // 15Repeater is just a wrapper around the target function. It exposes several util props:
| Prop | Description |
|---|---|
delay |
interval in ms |
timeout |
TimeoutID |
target |
ref for original target function |
context |
optional scope |
limit |
optional remainder of calls |
args |
arguments of the last invocation |
So, anytime you're let to interrupt the repetitive call by clearing timeout:
clearTimeout(rep.timeout) const rep1 = repeater(target, delay, context, limit)
const rep2 = repeater({target, delay, context, limit})