I'm trying to make the program go through a predetermined string and read each character 1 by 1 in a manner similar to what I have posted. The IDE tells me that I cannot do "cs >= 1" because ">=" is not part of "(Char => Boolean) => Int".
def move(s: String) {
var chemov = s.take(1)
var cs = s.count(_)
while (cs >= 1){
ad()
s.drop(1)
}
}
s.count() does not give you the length of the s, but it gives you the number of occurences that the predicate matches. By just supplying an underscore, cs is not an integer, but a function. That is why you get your error. You can get the size with s.length
If you want to use count, then you have to supply a function:
var cs = s.count(_ => true)
Alternatively, you can just iterate over the string:
s.foreach( c => {
ad()
})
sdoes not modify bys.drop(1). That function returns the string without the first character. Alsocs, never updates, so even ifcswas an integer, the loop would never terminate.chemov? It contains the first character ofs, but since it is never used, ands.take(1)does not modifys, the operation has no effect.