how to put and condition in an if statement in javascript code example

Example 1: if statements javascript

if (pros < 10) {
  console.log("LESS THAN 10 PROS!");
}
else if (pros < 5) {
  console.log("LESS THAN 5 PROS!");
}
else {
  console.log("How many pros are there?");
}

Example 2: javascript if elseif

if (condition) {

} else if (other_condition) {

} else {

}