detritus.pred

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Clojure only.

!
->>assert
->assert
atom?
seqable?

A collection of predicates and predicate helpers.

A collection of predicates and predicate helpers.

raw docstring

!^clj

source

->>assert^clj

(->>assert pred v)

(->>assert pred error v)

(λ ((λ T) → Bool) → T) → T (λ ((λ T) → Bool) → T → String) → T

Function of a predicate, optionally a string and a value. If the predicate is not true of the value, this function will assert false giving the optional string or "->assert failed!" as the failure message. Otherwise returns the argument value.

Example: (->> 1 inc inc dec (->>assert number? "oh god the types"))

(λ ((λ T) → Bool) → T) → T
(λ ((λ T) → Bool) → T → String) → T

Function of a predicate, optionally a string and a value. If the
predicate is not true of the value, this function will assert false
giving the optional string or "->assert failed!" as the failure
message. Otherwise returns the argument value.

Example:
  (->> 1 inc inc dec
    (->>assert number? "oh god the types"))

source raw docstring

->assert^clj

(->assert v pred)

(->assert v pred error)

(λ T → ((λ T) → Bool)) → T (λ T → ((λ T) → Bool) → String) → T

Function of a value, a predicate and optionally a string. If the predicate is not true of the value, this function will assert false giving the optional string or "->assert failed!" as the failure message. Otherwise returns the argument value.

Example: (-> 1 inc inc dec (->assert number? "oh god the types"))

(λ T → ((λ T) → Bool)) → T
(λ T → ((λ T) → Bool) → String) → T

Function of a value, a predicate and optionally a string. If the
predicate is not true of the value, this function will assert false
giving the optional string or "->assert failed!" as the failure
message. Otherwise returns the argument value.

Example:
  (-> 1 inc inc dec
     (->assert number? "oh god the types"))

source raw docstring