The assert statement is used for debugging purposes. It checks that a given condition is true at runtime. If the condition is false, it throws an exception, halting program execution.

• assert statements are typically used during development to catch logic errors.
• They are ignored in production mode (when the app is compiled with -release).
• Use assert to document and validate assumptions about your program's state.
• assert Statement: Checks a condition during development and halts execution if the condition is false.
• It's useful for catching bugs and verifying assumptions about the program's state.

void main() {
  int x = 10;

  assert(x == 10); // This will pass

  x = 20;
  assert(x == 10); // This will trigger an AssertionError and halt execution
}