These functions are incredibly useful for testing to see if a value is a number that meets certain constraints as they return false for _any_ input that doesn't satisfy the constraints explicitly. Tested in NodeJS and Firefox and both of them work properly when you give a range of values. MDN also indicates that they will return false for any non-number input.
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If you need to make modifications, the respective files should be changed within the repository's top-level src directory.
Running jake LKG will then appropriately update the files in this directory.
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