Commit bc685ac97855accf26bcdf7168da942ffcdccd1a
watch-throttle: add broadcastInitial option
Matt McKegg committed on 11/19/2016, 11:43:16 AMParent: ae401384e63a7c1f60eac488db0787638deb6a7e
Files changed
| watch-throttle.js | changed |
| watch-throttle.js | ||
|---|---|---|
| @@ -1,17 +1,22 @@ | ||
| 1 | 1 … | var resolve = require('./resolve') |
| 2 | 2 … | var isObservable = require('./is-observable') |
| 3 | 3 … | |
| 4 | -module.exports = function throttledWatch (obs, minDelay, listener) { | |
| 4 … | +module.exports = function throttledWatch (obs, minDelay, listener, opts) { | |
| 5 | 5 … | var throttling = false |
| 6 | 6 … | var lastRefreshAt = 0 |
| 7 | 7 … | var lastValueAt = 0 |
| 8 | 8 … | var throttleTimer = null |
| 9 | 9 … | |
| 10 … | + var broadcastInitial = !opts || opts.broadcastInitial !== false | |
| 11 … | + | |
| 10 | 12 … | // default delay is 20 ms |
| 11 | 13 … | minDelay = minDelay || 20 |
| 12 | 14 … | |
| 13 | - listener(resolve(obs)) | |
| 15 … | + // run unless opts.broadcastInitial === false | |
| 16 … | + if (broadcastInitial) { | |
| 17 … | + listener(resolve(obs)) | |
| 18 … | + } | |
| 14 | 19 … | |
| 15 | 20 … | if (isObservable(obs)) { |
| 16 | 21 … | return obs(function (v) { |
| 17 | 22 … | if (!throttling) { |
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