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22 lines
857 B
Markdown
22 lines
857 B
Markdown
# Numbers Are Empty
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The [`lodash`](https://lodash.com/) project comes with a ton of handy
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JavaScript utilities including the
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[`_.isEmpty()`](https://lodash.com/docs#isEmpty) function. This is great for
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checking if Arrays, Objects, and Strings are _empty_. The following is how
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this function is defined in the docs:
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> Checks if value is an empty collection or object. A value is considered
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> empty if it's an arguments object, array, string, or jQuery-like
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> collection with a length of 0 or has no own enumerable properties.
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Having not examined this definition too closely and because I primarily
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write Rails code from day to day, I conflated `_.isEmpty()` with the
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`#blank?` method provided by Rails' `ActiveSupport`. This holds true for the
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most part, but quickly defies expectations when it comes to numbers.
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```javascript
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> _.isEmpty(1)
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// true
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```
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