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simplify array operators in stream

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This commit is contained in:
eladzlot 2016-11-20 14:13:35 +02:00
parent 11b11caf83
commit 3a1124f3ec
1 changed files with 2 additions and 2 deletions
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4
stream/stream.js
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@ -44,7 +44,7 @@ function updateState(stream, value) {
}
function updateDependency(stream, mustSync) {
var state = stream._state, parents = state.parents
if (parents.length > 0 && parents.filter(active).length === parents.length && (mustSync || parents.filter(changed).length > 0)) {
if (parents.length > 0 && parents.every(active) && (mustSync || parents.some(changed))) {
var value = stream._state.derive()
if (value === HALT) return false
updateState(stream, value)
@ -56,7 +56,7 @@ function finalize(stream) {
}
function combine(fn, streams) {
if (streams.length > streams.filter(valid).length) throw new Error("Ensure that each item passed to m.prop.combine/m.prop.merge is a stream")
if (!streams.every(valid)) throw new Error("Ensure that each item passed to m.prop.combine/m.prop.merge is a stream")
return initDependency(createStream(), streams, function() {
return fn.apply(this, streams.concat([streams.filter(changed)]))
})