Stage 5 3. Micro Services [online] studies _day04 static pages _08-freemarker basis of - null handling

The stus commented


normal access will error



stus line 20 here is empty, it caused this error.

Non-empty judgment

Double null is not a question mark to determine the




added value is determined not null the error.

Defaults

Stu1 set to null the

36 lines of code from a given

line of code 36


may be determined by way of non-empty

default