ObjectScript's flow control keywords accepting boolean expressions (such as if, while and others) allow to write boolean expressions without surrounding parentheses; for instance:
if x > 4 {
write x, " is greater than 4", !
}
However, such code is rather confusing for people coming from other languages (Java, C, C++, etc) where surrounding parenthese are required.
Since surrounding such expressions in ObjectScript has no ill effect on the behavior of those expressions, you may want to use surrounding parentheses:
if (x > 4) {
write x, " is greater than 4", !
}