git ssb - value: add defaultValue option · Matt McKegg/mutant@f5910e3b

Matt McKegg committed on 9/10/2016, 6:07:53 AM
Parent: 117c25c0033f5aa847498c91de7027643cf61eb7

changed

value.jsView
		@@ -1,16 +1,16 @@
1	1	module.exports = Observable
2	2
3		-function Observable (value) {
	3	+function Observable (value, opts) {
4	4	var listeners = []
5		- value = value === undefined ? null : value
	5	+ value = getValue(value, opts)
6	6
7	7	observable.set = function (v) {
8		- value = v
	8	+ value = getValue(v, opts)
9	9
10	10	var cachedListeners = listeners.slice(0)
11	11	for (var i = 0, len = cachedListeners.length; i < len; i++) {
12		- cachedListeners[i](v)
	12	+ cachedListeners[i](value)
13	13	}
14	14	}
15	15
16	16	return observable
		@@ -35,4 +35,15 @@
35	35	}
36	36	}
37	37	}
38	38	}
	39	+
	40	+function getValue (value, opts) {
	41	+ if (value == null) {
	42	+ if (opts && opts.defaultValue != null) {
	43	+ value = opts.defaultValue
	44	+ } else {
	45	+ value = null
	46	+ }
	47	+ }
	48	+ return value
	49	+}

Matt McKegg / mutant