Add allowString and unsigned options to integer assert
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allowString and unsigned options to integer assert
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I think this PR solves some interesting problems of the Integer assert at the cost of a increased complexity and some decisions we need to make.
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Do we want to allow strings at all on this assert considering we're validating integers? Could be a contradictory statement, but not unlikely in javascript land.
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The current regexp only accepts integers without leading zeros because a number like
01will be interpreted by javascript as1, so it wouldn't make sense to accept any other form. The new unsigned regexp, as it is, accepts any form of integer (with or without leading zero), so there is a duality in behaviour which will likely confuse developers. -
Would a separate assert make more sense? I.e. something in the line of
Numeric?
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| #### Arguments | ||
| - `allowString` (optional) - whether the assert accepts string inputs or not. | ||
| - `unsigned` (optional) - whether the assert should consider only unsigned values or not. |
| const int = /^(?:[-+]?(?:0|[1-9][0-9]*))$/; | ||
| const int = { | ||
| signed: /^(?:[-+]?(?:0|[1-9][0-9]*))$/, | ||
| unsigned: /^(?:\d+)$/ |
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Keep same style? [0-9] instead of \d+?
| Tests if the value is an integer. | ||
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| #### Arguments | ||
| - `allowString` (optional) - whether the assert accepts string inputs or not. |
This PR adds a few options to the
Integerassert:allowString: This option allows the assert to validate integers represented as strings.unsigned: This option forces only simple unsigned integers.The
questionhere is if we want to allowintegerassert to be a string and the impact for users confronted with anintegerassert that forces the input to be a string. Also it would be nice to come to a conclusion on distinguishing between integers with leading zeros or not and if an option should be presented for that matter.