▼Unlib: Helpful Utilities from Untyped
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make-hash/ alist
make-hasheq/ alist
make-weak-hash/ alist
make-weak-hasheq/ alist
hash-set?
hash-keys
hash-values
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15 PLT 4x hash utilities

 (require (planet untyped/unlib/hash))
Useful hash utilities. These procedures are compatible with the PLT 4 procedure names for hashes.

(make-hash/alist data) → hash?
  data : (listof pair?)
Creates a mutable hash using the supplied data. The result has strong keys and uses equal? as a key comparison function.

(make-hasheq/alist data) → hash?
  data : (listof pair?)
Creates a mutable hash using the supplied data. The result has strong keys and uses eq? as a key comparison function.

(make-weak-hash/alist data) → hash?
  data : (listof pair?)
Creates a mutable hash using the supplied data. The result has weak keys and uses equal? as a key comparison function.

(make-weak-hasheq/alist data) → hash?
  data : (listof pair?)
Creates a mutable hash using the supplied data. The result has weak keys and uses eq? as a key comparison function.

(hash-set? hash key) → boolean?
  hash : hash?
  key : any
Returns #t if key is stored in hash, #f otherwise.

(hash-keys hash) → list?
  hash : hash?
Returns a (randomly ordered) list of the keys stored in hash.

(hash-values hash) → list?
  hash : hash?
Returns a (randomly ordered) list of the values stored in hash.

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