fastn
supports functions which users can create to execute their own logic in their fastn
documents. It also provides various built-in-functions
which users can use anywhere in their fastn
document.-- <return-type> <function-name>(<arg-1-name>, <arg-2-name>, ...): <arg-1-type> <arg-1-name>: <optional-default-value> <arg-2-type> <arg-2-name>: <optional-default-value> ... <function-body>
add()
function is defined below which takes two integer as arguments and returns the added value.add()
function-- integer add(a, b): integer a: integer b: a + b
$
.-- integer add(a, b): integer a: integer b: a + b -- ftd.column: spacing.fixed.px: 10 color: $inherited.colors.text -- ftd.text: Adding 35 and 83 -- ftd.integer: $add(a=35, b=83) -- end: ftd.column
fastn
.This function will clamp the value between 0 and max
.
[0,max]
given max > 0
.regular-clamp()
-- integer $num: 0 -- display-integer: $num $on-click$: $regular-clamp($a = $num, by = 1, max = 6) -- void regular-clamp(a,by,max): integer $a: integer by: integer max: a = (a + by) % (max + 1)
This function will clamp the value between min
and max
.
[min,max]
given max > min
.clamp_with_limits()
-- integer $n: 1 -- display-integer: $n $on-click$: $clamp_with_limits($a = $n, by = 1, min = 1, max = 6) -- void clamp_with_limits(a,by,min,max): integer $a: integer by: 1 integer min: 0 integer max: 5 a = (((a - min) + by) % (max + 1 - min)) + min
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