Problem with ternary operator

[strickek]

a=("yes", "no")
isa(a,Tuple)? y,n=a : -1

results in error massage:

syntax: colon expected in “?” expression

any sugestions?

[yuyichao]

@strickek

isa(a,Tuple)? y,n=a : -1

isa(a,Tuple)? (y,n)=a : -1

[strickek]

thanks