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defineProp: Like Object.defineProperty but with a bitmask number instead of a complex object
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| /* | |
| | bitmask | enumerable | configurable | writable | accessor | | |
| | ------- | ---------- | ------------ | -------- | -------- | | |
| | 0 | | | | | | |
| | 1 | YES | | | | | |
| | 2 | | YES | | | | |
| | 3 | YES | YES | | | | |
| | 4 | | | YES | | | |
| | 5 | YES | | YES | | | |
| | 6 | | YES | YES | | | |
| | 7 | YES | YES | YES | | | |
| | 8 | | | | YES | | |
| | 9 | YES | | | YES | | |
| | 10 | | YES | | YES | | |
| | 11 | YES | YES | | YES | | |
| */ | |
| function defineProp(object, name, bitmask, valueOrGetter, setter) { | |
| var descriptor = { configurable: bitmask & 2, enumerable: bitmask & 1 } | |
| if (bitmask & 4) descriptor.writable = true | |
| if (bitmask & 8) { | |
| descriptor.get = valueOrGetter | |
| descriptor.set = setter | |
| } else descriptor.value = valueOrGetter | |
| return Object.defineProperty(object, name, descriptor) | |
| } | |
| /* Example Usage: | |
| defineProp({}, "arf", 2, "configurable value") | |
| defineProp({}, "boo", 6, "configurable & writable value") | |
| defineProp({}, "caw", 7, "configurable & writable & enumerable value") */ | |
| function defineProps(object, props) { | |
| for (var name in props) defineProp(object, name, props[name][0], props[name][1]) | |
| return object | |
| } | |
| /* Example Usage: | |
| defineProps({}, { | |
| arf: [2, "configurable value"], | |
| boo: [6, "configurable & writable value"], | |
| caw: [7, "configurable & writable & enumerable value"] | |
| }) */ |
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