Sun calculation js library which is fully based on formula from http://aa.quae.nl/en/reken/zonpositie.html
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24 lines
666 B
24 lines
666 B
7 years ago
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# own-or-env
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Use an objects own property, or an environment variable. Optionally
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treat as a boolean if the env should be set to 1 or 0.
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## API
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`ownOrEnv(object, field, env, boolean)`
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Use the `object[field]` if it's an own property, otherwise use the
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named environent variable. If `boolean` is set to `true`, then cast
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to a boolean flag.
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## USAGE
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```js
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// will set doTheThing to true based on config.doThing, falling back
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// to reading process.env.DO_THING, where '0' is treated as false.
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var doTheThing = ownOrEnv(config, 'doThing', 'DO_THING', true)
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// just treat this one as a string, not a boolean flag
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var file = ownOrEnv(config, 'file', 'MY_FILE')
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```
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