| Inequality | Interval | Ruby range | Active Record¹ | Arel² | Description |
|---|---|---|---|---|---|
| x >= a | [a, ∞) | a.. | where(x: a..) | x.gteq(a) | Right unbounded closed |
| x > a | (a, ∞) | n/a | where.not(x: ..a) | x.gt(a) | Right unbounded open |
| x <= a | (-∞, a] | ..a | where(x: ..a) | x.lteq(a) | Left unbounded closed |
| x < a | (-∞, a) | ...a | where(x: ...a) | x.lt(a) | Left unbounded open |
| a <= x <= b | [a, b] | a..b | where(x: a..b) | x.between(a..b) | Closed |
| a < x < b | (a, b) | n/a | where.not(x: ..a).where(x: ...b) | x.gt(a).and(x.lt(b)) | Open |
| a <= x < b | [a, b) | a...b | where(x: a... |
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| module Uu58 | |
| ALPHABET58 = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz".chars.freeze | |
| ALPHAMAP58 = ALPHABET58.each_with_index.to_h.freeze | |
| # Convert a string UUID to a base58 string representation. | |
| # | |
| # Output will be padded up to 22 digits if necessary. | |
| # | |
| # Behaviour is undefined if passing something other than a 128-bit | |
| # hex string in network order with optional interstitial hyphens. |
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