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Co-authored-by: 翠 / green <[email protected]>

crates/oxc_minifier/src/peephole/minimize_conditions.rs

@@ -188,12 +188,14 @@ impl<'a> PeepholeOptimizations {
             } else if let Some(stmt) = &mut if_stmt.alternate {
                 // "yes" is missing and "no" is not missing (and is not an expression)
                 match &mut if_stmt.test {
+                    // "if (!a) {} else return b;" => "if (a) return b;"
                     Expression::UnaryExpression(unary_expr) if unary_expr.operator.is_not() => {
                         if_stmt.test = ctx.ast.move_expression(&mut unary_expr.argument);
                         if_stmt.consequent = ctx.ast.move_statement(stmt);
                         if_stmt.alternate = None;
                         self.mark_current_function_as_changed();
                     }
+                    // "if (a) {} else return b;" => "if (!a) return b;"
                     _ => {
                         if_stmt.test = Self::minimize_not(
                             if_stmt.test.span(),
@@ -219,6 +221,7 @@ impl<'a> PeepholeOptimizations {
                         self.mark_current_function_as_changed();
                     }
                 }
+                // "if (a) return b; else {}" => "if (a) return b;" is handled by remove_dead_code
             } else {
                 // "no" is missing
                 if let Statement::IfStatement(if2_stmt) = &mut if_stmt.consequent {