Truth

In MiniScript certain statements and operations interpret their parts as being true or not true. These are the conditions of the if and while statements, and the operands of and, or and not operators .

Any MiniScript value - not only true and false values - can be used in these constructions. This is how they are interpreted:

Type	Considered false	Considered true
null	always false
number	0, false	any non-zero number, including true, INFs and NaN
string	empty string ("")	non-empty strings
list	empty list ([])	non-empty lists
map	empty map ({})	non-empty maps
funcRef		should always be true (but see this bug for a command-line version)

Examples

if 0 then print "hi"        // prints nothing

if 0/0 then print "hi"      // prints "hi"

if [false] then print "hi"  // prints "hi"

print 0 or {0:0}            // prints 1