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Cons vs Lack - What's the difference?

cons | lack |

As verbs the difference between cons and lack

is that cons is (computing) to obtain a list from a cons or a nesting of conses; to prepend an element to a list by forming a cons of that element and the list; to obtain a list from a smaller one by repeated application of such kind of prepending or cons can be (con) while lack is .

As a noun cons

is or cons can be (computing) a data structure in lisp that is a pair of pointers, car and cdr, used mainly for lists.

cons

English

Etymology 1

Noun

(head)

    • Etymology 2

    Abbreviation of construct .

    Noun

    (conses)
  • (computing) A data structure in LISP that is a pair of pointers, car and cdr, used mainly for lists.
    • Synonyms
    * cons cell
    Related terms
    * car * cdr * list * LISP

    Verb

    (es)
  • (computing) To obtain a list from a cons or a nesting of conses; to prepend an element to a list by forming a cons of that element and the list; to obtain a list from a smaller one by repeated application of such kind of prepending.
    • In addition to specifying the whole list at once using square brackets and commas, you can build them up piece by piece using the (:) operator. This process is often referred to as consing.

    Etymology 3

    Verb

    (head)
  • (con)
    • ----

    lack

    English

    Noun

    (en noun)
  • (obsolete) A defect or failing; moral or spiritual degeneracy.
  • *
    • , title=(The Celebrity), chapter=1 , passage=In the old days, to my commonplace and unobserving mind, he gave no evidences of genius whatsoever. He never read me any of his manuscripts, […], and therefore my lack of detection of his promise may in some degree be pardoned.}}
  • A deficiency or need (of something desirable or necessary); an absence, want.
  • * Shakespeare
    • Let his lack of years be no impediment.
  • * 1994 , (Green Day),
    • I went to a shrink, to analyze my dreams. He said it's lack of sex that's bringing me down.''
  • * {{quote-news, year=2012, date=September 7, author=Phil McNulty, work=BBC Sport
    • , title= Moldova 0-5 England , passage=If Moldova harboured even the slightest hopes of pulling off a comeback that would have bordered on miraculous given their lack of quality, they were snuffed out 13 minutes before the break when Oxlade-Chamberlain picked his way through midfield before releasing Defoe for a finish that should have been dealt with more convincingly by Namasco at his near post.}}

    Antonyms

    * glut * surplus

    Verb

    (en verb)
  • To be without, to need, to require.
    • My life lacks excitement.
  • To be short (of'' or ''for something).
    • He'll never lack for company while he's got all that money.
  • * Shakespeare
    • What hour now? I think it lacks of twelve.
  • To be in want.
  • * Bible, Psalms xxxiv. 10
    • The young lions do lack , and suffer hunger.

    Related terms

    * lackluster

    Anagrams

    * ----