Creates aliases in the current namespace for all Vars in source-ns that have truthy :auto-alias metadata, skipping symbols already defined.

Converts bytes into a string

Returns a set of characters defined as a collection of collections with start and stop character, e.g.: \A \Z

Generates the given number of random digits and converts all into a single string. When a second argument is present, it should be an instance of a random number generator used to get the digits.

Like rand-int but optionally uses random number generator.

Returns a random element of the given vector. When a second argument is present, it should be an instance of a random number generator used to get the random position.

Just like the contains? but if the keyword is namespace-qualified it also checks if the collection contains the same keyword as its key but without a namespace.

Just like the get function but if the keyword is namespace-qualified it first attempts to look for the value associated with it. If that fails it uses the variant of the keyword without any namespace.

Like juxt but returns a lazy sequence.

Returns a set with all elements not matching pred removed.

Returns nil when s is nil or when the resulting set is empty.

Returns a lazy sequence as an interface to the given iterable Java object.

Takes a string of namespace name and a keyword. If the given keyword is not namespace-qualified it returns a new keyword with the given namespace added. If the given keyword is already equipped with a namespace it returns it.

For 0 or 1 it returns its argument. For other positive numbers it returns a random natural number from 1 to this number (inclusive) in 50% cases. In other 50% cases it returns its argument.

Returns a set with all elements matching pred removed.

Returns nil when s is nil or when the resulting set is empty.

Splits a string on the first slash character (‘/’).

Returns a vector of two strings: [before after]. When s is nil or empty, returns [nil nil]. When there is no slash, returns [s nil]. Uses Java indexOf and substring.

Splits a string on the last slash character (‘/’).

Returns a vector of two strings: [before after]. When s is nil or empty, returns [nil nil]. When there is no slash, returns [nil s]. Uses Java lastIndexOf and substring.

Evaluates body and if a NullPointerException is caught it returns nil. Otherwise it returns the value of the last expression in the body.

Returns an integer from an object or nil if the given object cannot be converted to an integer.

Returns a long from an object or nil if the given object cannot be converted to a long.

Evaluates body when the given value is a non-empty collection.

Returns the collection if it’s not empty. Otherwise returns nil.