expr:functions:func-defnz

defnz()

Set default value.

Returns val if val exists and is not zero.
Returns def if val does not exist or is zero.

Syntax

defnz(val, def);

Parameters

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

Examples

result = def(val, 11);

result:

val = 99;
result = def(val, 11);

result:

val = 0;
result = def(val, 11);

result:

val = nan();
result = def(val, 11);

result:

See also

def, exists, notexists

expr/functions/func-defnz.txt · Last modified: 2023/02/16 09:35 by 127.0.0.1