@@ -8,7 +8,7 @@
 function square(num) {
     return num * num;
 }
-console.log(square(5));
+
 // it showed SyntaxError: Unexpected number
 
 // the parameter of a function must be a name /identifier, not a number.
Original file line number	Diff line number	Diff line change
`@@ -8,7 +8,7 @@`
`8`	`8`	`function square(num) {`
`9`	`9`	`return num * num;`
`10`	`10`	`}`
`11`		`-console.log(square(5));`
	`11`	`+`
`12`	`12`	`// it showed SyntaxError: Unexpected number`
`13`	`13`
`14`	`14`	`// the parameter of a function must be a name /identifier, not a number.`