如何将 Int 类型的值转换为预期的参数类型 Bool

Question

I'm trying to check if 1Array.count is greater than the counts of three other arrays, 2Array , 3Array , and 4Array :

if 1Array.count > 2Array.count && 3Array.count && 4Array.count {
    // code
}

but I have this error:

Cannot convert value of type 'Int' to expected argument type 'Bool'

How can I fix it?

Answer 1

If you are trying to check that all arrays are < 1Array then your If stmt needs to read like this:

if 1Array.count > 2Array.count && 1Array.count > 3Array.count && 1Array.count > 4Array.count {
}

Better yet:

if array1.count > array2.count, array1.count > array3.count, array1.count > array4.count {
    }

Rename the variables might be good too as I show in the above example.

Answer 2

If your intent is to make sure that 1Array count is greater than all the other collections count you can simply compare it against the maximum value of them:

if array1.count > max(array2.count, array3.count, array4.count) {
    // your code
}