Nyquist / XLISP 2.0  - 
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car
  | Type: | - | function (subr) | 
  | Source: | - | xllist.c | 
Syntax
- (car expr)
- expr - a list or list expression
 returns - the first element of the list
 
Description
The 'car' function returns the first element of
the expression. If the first expression
is itself a list, then the sublist is returned. If the list is
NIL , NIL is
returned.
The 'car' function returns the same result as the
first function.
Examples
(car '(a b c))       => A
(car '((a b) c d))   => (A B)
(car NIL)            => NIL
(car 'a)             => error: bad argument type
(setq bob '(1 2 3))  => (1 2 3)
(car bob)            => 1
See also:
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Nyquist / XLISP 2.0  - 
Contents |
Tutorials |
Examples |
Reference