Interestingly, in a very early version classes were allowed to be expressed as arrays of strings just like you had, but in the vast majority of cases a space delimited string worked fine, so this feature was dropped for simplicity/uniformity.
condition && "conditional-class"
Interestingly, in a very early version classes were allowed to be expressed as arrays of strings just like you had, but in the vast majority of cases a space delimited string worked fine, so this feature was dropped for simplicity/uniformity.