clj-lib.types
Useful utility fns for inspecting and coercing types.
->bool
(->bool v)
Parses `v` as a boolean. Throws an exception if `v` is not parsable as a boolean.
->double
(->double v)
Parses `v` as a double. Throws an exception if `v` is not parsable as a double.
->float
(->float v)
Parses `v` as a float. Throws an exception if `v` is not parsable as a float.
->int
(->int v)
Parses `v` as an int. Throws an exception if `v` is not parsable as an int.
->keyword
(->keyword v)
Coerces `v` to a keyword, if possible.
->long
(->long v)
Parses `v` as a long. Throws an exception is `v` is not parsable as a long.
->symbol
(->symbol v)
Coerces `v` to a symbol, if possible.
agent?
(agent? v)
Returns true if `v` is an `agent`, false otherwise.
bool-array?
(bool-array? v)
Returns true if `v` is a bool-array, false otherwise.
bool?
(bool? n)
Returns true if `n` is a `bool`, false otherwise.
byte-array?
(byte-array? v)
Returns true if `v` is a byte-array, false otherwise.
byte?
(byte? n)
Returns true if `n` is a `byte`, false otherwise.
double-array?
(double-array? v)
Returns true if `v` is a double-array, false otherwise.
double?
(double? n)
Returns true if `n` is a `double`, false otherwise.
empty?->nil
(empty?->nil v)
If `v` is `empty?`, returns nil. Otherwise, returns `v`.
float-array?
(float-array? v)
Returns true if `v` is a float-array, false otherwise.
float?
(float? n)
Returns true if `n` is a `float`, false otherwise. Differs from
`clojure.core/float?` in that `n` must be a java primitive `float`, whereas
`clojure.core/float?` returns true if `n` is "a floating point number,"
either single or a double precision.
int-array?
(int-array? v)
Returns true if `v` is a int-array, false otherwise.
int?
(int? n)
Returns true if `n` is an `int`, false otherwise. Differs from
`clojure.core/integer?` in that `n` must be a java primitive `int`, whereas
`clojure.core/integer?` returns true if `n` is any of a `byte`, `short`, `int`
, `long` or even `BigInteger`.
long-array?
(long-array? v)
Returns true if `v` is a long-array, false otherwise.
long?
(long? n)
Returns true if `n` is a `long`, false otherwise.
pattern?
(pattern? v)
Returns true if `v` is a `java.util.regex.Pattern`, as created by
`#"som[eE]thing"` or `(re-pattern "some[eE]thing")`.
ref?
(ref? v)
Returns true if `v` is a `ref`, false otherwise.
safe->double
(safe->double v)
Parses `v` as a double. Returns `nil` if `v` is not parsable as a double.
safe->float
(safe->float v)
Parses `v` as a float. Returns `nil` if `v` is not parsable as a float.
safe->int
(safe->int v)
Parses `v` as an int. Returns `nil` if `v` is not parsable as an int.
safe->long
(safe->long v)
Parses `v` as an int. Returns `nil` if `v` is not parsable as an int.
short-array?
(short-array? v)
Returns true if `v` is a short-array, false otherwise.
short?
(short? n)
Returns true if `n` is a `short`, false otherwise.
throwable?
(throwable? v)
Returns true if `v` is a `Throwable`, false otherwise.
type-bool-array
Type const of a java primitive boolean array.
type-byte-array
Type const of a java primitive byte array.
type-double-array
Type const of a java primitive double array.
type-float-array
Type const of a java primitive float array.
type-int-array
Type const of a java primitive int array.
type-long-array
Type const of a java primitive long array.
type-short-array
Type const of a java primitive short array.