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To see all available qualifiers, see our documentation.
isWhitespaceString
isEmptyStringOrWhitespace
Class
is.enumCase
.validDate()
isNonEmptyString()
isNonEmptyStringAndNotWhitespace()
directInstanceOf
undefined
null
is.domElement()
is.htmlElement()
assert.all
assert.any
.tupleLike()
is.nonEmptyArray()
assert.{truthy,falsy,nan}