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Test whether a character belongs to the ASCII character set and whether this is true for all characters in a provided string.
Test whether a value is an absolute HTTP(S) URI.
Test whether a value is an absolute URI.
Test if a value is a domain name.
Test if a value is a duration string.
Test if a value is an Error object.
Test if a value is a gzip buffer.
Test if a value is a parseable JSON string.
Test if a value is a 2-dimensional ndarray-like object.
Test if a value is named typed tuple-like.
Test if a value is ndarray-like.
Test if a value is PRNG-like.
Test if a value is a ReferenceError object.
Test if a value is a TypeError object.
Test if a value is a URI.
Test if a value is a URIError object.
Standard library assertion utility tools.
Test if a value is a valid array length.
Test if a value is a binary string.
Test if a value is a blank string.
Test if a value is an EvalError object.
Test whether a value is a localhost hostname.
Test if a value is a MultiSlice object.
Test if a value is a RangeError object.
Test whether a value is a relative URI.
Test if a value is a Slice object.
Test if a value is a SyntaxError object.