can you do if statements in javascript code example

Example 1: javascript if else

var age=20;
if (age < 18) {
	console.log("underage");
} else {
	console.log("let em in!");
}

Example 2: if condition javascript

if (condition){
// if true then execute this -}
 else{
 // if statment is not true then execut this -
 }