👉 In the context of programming, a post-formed expression is an expression that can only be evaluated once and then discarded. This means that it cannot be used multiple times in a function or within another expression. For example: ``` a = 10; b = 20; if (b < 5) { c = b + a - 3; // post-formed } ``` In this case, the expression `c` is evaluated only once before being discarded.
