detritus.update
A collection of helper functions useful for updating and conditionally updating datastructures.
A collection of helper functions useful for updating and conditionally updating datastructures.
->>when-updateclj
(->>when-update pred f & args)Function of a predicate, an updater, optional varargs and a value. If the predicate is true of the value, returns (apply f x args), otherwise returns x.
Example: (->> 1 (->>when-update #(<= 0 %) inc))
Function of a predicate, an updater, optional varargs and a value. If the predicate is true of the value, returns (apply f x args), otherwise returns x. Example: (->> 1 (->>when-update #(<= 0 %) inc))
->when-updateclj
(->when-update x pred f & args)Function of a value, a predicate, an updater and optional varargs. If the predicate is true of the value, returns (apply f x args), otherwise returns x.
Example: (-> 1 (->when-update #(<= 0 %) inc))
Function of a value, a predicate, an updater and optional varargs. If the predicate is true of the value, returns (apply f x args), otherwise returns x. Example: (-> 1 (->when-update #(<= 0 %) inc))
fixclj
(fix f dat)λ (fn T → T) → T → T
Eagerly computes the fixed point combinator of the input function and value. As this computation is eager, it will terminate only when a fixed point is reached which may be never.
λ (fn T → T) → T → T Eagerly computes the fixed point combinator of the input function and value. As this computation is eager, it will terminate only when a fixed point is reached which may be never.
map-keyscljdeprecated
Colloquial term for transforming the domain.
Colloquial term for transforming the domain.
map-keys-and-valsclj
(map-keys-and-vals m f & args)Create a new map from m by calling function f on each key & each value to get a new key & value
Create a new map from m by calling function f on each key & each value to get a new key & value
map-valscljdeprecated
Colloquial term for transforming the codomain.
Colloquial term for transforming the codomain.
map-vals-with-keysclj
(map-vals-with-keys m f & args)Create a new map from m by calling function f, with two arguments (the key and value) to get a new value.
Create a new map from m by calling function f, with two arguments (the key and value) to get a new value.
take-whenclj
(take-when f empty col)Helper useful for parsing regular function argument seqeunces. If a predicate is satisfied, returns a pair [(first col), (rest col)] otherwise returns the pair [empty, col].
Ex. (let [[?docstring args] (take-when string? "" args) [?attr-map args] (take-when map? {} args)] ..)
Helper useful for parsing regular function argument seqeunces. If a predicate
is satisfied, returns a pair [(first col), (rest col)] otherwise returns the pair
[empty, col].
Ex. (let [[?docstring args] (take-when string? "" args)
[?attr-map args] (take-when map? {} args)]
..)update-codomainclj
(update-codomain m f & args)Transforms a mapping (function) by applying the given transformation to all the elements of the codomain, returning a new mapping m' such that ∀k→v∈m, k→(f v & args)∈m'.
Transforms a mapping (function) by applying the given transformation to all the elements of the codomain, returning a new mapping m' such that ∀k→v∈m, k→(f v & args)∈m'.
update-domainclj
(update-domain m f & args)Transforms a mapping (function) by applying the given transformation to all the elements of the domain, returning a new mapping m' such that ∀k→v∈m, (f k & args)→v∈m'.
Transforms a mapping (function) by applying the given transformation to all the elements of the domain, returning a new mapping m' such that ∀k→v∈m, (f k & args)→v∈m'.
update-keyscljdeprecated
Colloquial term for transforming the domain.
Colloquial term for transforming the domain.
update-rangecljdeprecated
Colloquial term for transforming the codomain.
Colloquial term for transforming the codomain.
update-valuescljdeprecated
Colloquial term for transforming the codomain.
Colloquial term for transforming the codomain.
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