soft-ascii-string provides char, str and string wrapper which add an "is-ascii" soft constraint. As it is a soft constraint it can be violated, while a violation is (normally) a bug it does not ...

:url_attribute The name of the attribute to use for storing the generated url string. Default is :url :scope The name of model attribute to scope unique urls to. There is no default here.

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Base64 is a popular binary to ASCII encoding scheme designed to reliably transfer binary data across channels that have limited support for various content types. This article goes over the basics of ...