def

Set default value.

Returns val if val exists.
Returns def if val does not exist.

Syntax

def[val, def]

val	Number to be checked it it exists or is zero.
def	Number to be returned if val does not exist.
Return Value	val if it exists, otherwise def.

#<result> = def[#<val>, 11]
(print,#<result>)

result: 11

#<val> = 99
#<result> = def[#<val>, 11]
(print,#<result>)

result: 99

#<val> = 0
#<result> = def[#<val>, 11]
(print,#<result>)

result: 0

#<val> = nan[]
#<result> = def[#<val>, 11]
(print,#<result>)

result: 11