Files: 4fefa6f1c65b8021e6ca1d82bcf83298da1ae22a / lib / mutant-to-pull.js
427 bytesRaw
| 1 | var watch = require('mutant/watch') |
| 2 | var pushable = require('pull-pushable') |
| 3 | |
| 4 | module.exports = function (obs) { |
| 5 | var releases = [] |
| 6 | |
| 7 | // create listener with `onClose` handler |
| 8 | var listener = pushable(function onClose () { |
| 9 | // if listener is found, delete from list |
| 10 | while (releases.length) { |
| 11 | releases.pop()() |
| 12 | } |
| 13 | }) |
| 14 | |
| 15 | releases.push(watch(obs, (value) => { |
| 16 | listener.push(value) |
| 17 | })) |
| 18 | |
| 19 | return listener |
| 20 | } |
| 21 |
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