software:racket:functions
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| ====== Racket Notes == | ====== Racket Notes == | ||
| + | |||
| + | The [[https://docs.racket-lang.org/reference/|Racket Reference]] has more details than this here page. I took these notes regarding Racket as a memory aid to help me get started with Racket. | ||
| Racket identifiers can contain any characters except for whitespace and the following special characters: '''( ) [ ] { } " , ' ` ; # | \'''. A special case is ''#'' which is allowed at the beginning of a symbol. | Racket identifiers can contain any characters except for whitespace and the following special characters: '''( ) [ ] { } " , ' ` ; # | \'''. A special case is ''#'' which is allowed at the beginning of a symbol. | ||
| + | |||
| ===== Data Structures == | ===== Data Structures == | ||
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| In Racket, ''null'' is an empty list, which is a singleton. | In Racket, ''null'' is an empty list, which is a singleton. | ||
| + | |||
| + | ===== Common Constants == | ||
| + | |||
| + | ==== #t == | ||
| + | |||
| + | The boolean true value. | ||
| + | |||
| + | ==== #f == | ||
| + | |||
| + | The boolean false value. | ||
| + | |||
| + | ==== null == | ||
| + | |||
| + | The empty list. | ||
| ===== Racket Functions == | ===== Racket Functions == | ||
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| (number->string <number>) | (number->string <number>) | ||
| </code> | </code> | ||
| + | |||
| + | ==== list == | ||
| + | |||
| + | Constructs a linked list from the specified arguments. | ||
| + | |||
| + | <code> | ||
| + | (list <arg1> <argN>...) | ||
| + | </code> | ||
| + | |||
| + | Note that the value returned is a pair containing the value of the first argument and pointer to the next pair in the list. | ||
software/racket/functions.1537665339.txt.gz · Last modified: 2018/09/22 18:15 by dave
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